Dissolving Or Chemical Reaction Patents (Class 299/5)
  • Patent number: 10590512
    Abstract: A method for leaching copper from an oxidized copper ore, wherein at least 5% of the copper present in the oxidized copper ore is an oxidized copper compound, the method comprising the method steps of: applying an aqueous solution of a curing agent to the oxidized copper ore to produce a cured ore; forming a leach solution by applying an ammoniacal solution that has an ammonium carbonate content of less than 5 g/L to the cured ore to produce a pregnant leach solution containing copper; and passing the pregnant leach solution to a means for recovering copper.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 17, 2020
    Assignee: METALEACH LIMITED
    Inventors: Matthew Leslie Sutcliffe, Garry Mervyn Johnston, Nicholas James Welham
  • Patent number: 10494560
    Abstract: Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided. The anti-bit balling drilling fluid contains water, a clay-based component, and at least one of a surfactant having the formula: R—(OC2H4)x—OH, where R is a hydrocarbyl group having from 10 to 20 carbon atoms and x is an integer from 1 and 10, or a polyethylene glycol having the formula: H—(O—CH2—CH2)n—OH, where n is an integer from 1 to 50. Methods of making and using these drilling fluids are also provided.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 3, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Abdullah Al-Yami, Abdulaziz A. Ba Hamdan, Saleh A. Haidary, Vikrant Wagle, Hussain AlBahrani, Ali Safran, Nasser AlHareth, Abdulla H. Awadh
  • Patent number: 10344199
    Abstract: Provided herein are methods and compositions for treatment of a subterranean wellbore that has become clogged with sludge deposits comprising a synthetic polymer and an oil tar.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: July 9, 2019
    Assignee: PEROXYCHEM LLC
    Inventors: Elena Pisanova, John M. Rovison
  • Patent number: 10221689
    Abstract: A method for forming and maintaining a fundamentally impervious boundary to very high purity hydrogen stored in a salt cavern is provided. The cavern includes a salt cavern wall. The method includes introducing a compressed very high purity hydrogen gas into a salt cavern, thereby producing a stored very high purity hydrogen gas; forming a fundamentally impervious boundary to the very high purity hydrogen along at least a part of the perimeter of the salt cavern, and maintaining the fundamentally impervious boundary to the stored very high purity hydrogen gas at a pressure greater than 1.0 psi per linear foot of height within the cavern, and less than 4.0 psi per linear foot of height within the cavern and thereby retaining within the salt cavern over 95% of the stored very high purity hydrogen over a period of time of at least 72 hours.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 5, 2019
    Assignee: Air Liquide Large Industries U.S. LP
    Inventor: Susan A. Ellerbusch
  • Patent number: 10215024
    Abstract: A system for forming and/or maintaining a fundamentally impervious boundary within a salt cavern for storing very high purity hydrogen is provided. The system includes a salt cavern comprising a salt cavern wall; a conduit configured to introduce a compressed very high purity hydrogen gas into a salt cavern, thereby producing a stored very high purity hydrogen gas; the conduit also configured to remove the compressed very high purity hydrogen gas from the salt cavern, wherein the stored very high purity hydrogen gas is maintained at a pressure greater than about 1.0 psi per linear foot of height within the cavern, and less than about 4.0 psi per linear foot of height within the cavern.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 26, 2019
    Assignee: Air Liquide Large Industries U.S. LP
    Inventor: Susan A. Ellerbusch
  • Patent number: 10041143
    Abstract: A method of leaching copper from a heap of ore that includes at least one resting step followed by an irrigation step, wherein, during the irrigation step a leach solution that contains chloride ions is applied to the ore at a higher rate than during the resting step.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 7, 2018
    Assignee: BHP CHILE INC.
    Inventor: George Frederick Rautenbach
  • Patent number: 9850756
    Abstract: A method for building an underground storehouse by dissolving limestone with carbon dioxide, the method comprising the following steps: a.) drilling two wells extending from the ground surface (1) to a limestone layer (2), building a channel (5) allowing the two wells to communicate, and installing casing pipes (3, 4) respectively in the two wells; b.) introducing CO2 gas having at least 1 MPa of pressure into a CO2 absorbing solution having the same pressure to form a CO2 solution, flowing the CO2 solution into underground via the casing pipe (3) to react with the limestone to form a calcium bicarbonate solution, forming a cavern in the meanwhile, and discharging the calcium bicarbonate solution via the other casing pipe (4); c.) decompressing the discharged calcium bicarbonate solution to decompose the calcium bicarbonate contained in the solution into CO2, water and calcium carbonate, and recycling the separated CO2 absorption solution and the CO2; repeating steps b.) and c.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: December 26, 2017
    Assignee: Sichuan University
    Inventors: Heping Xie, Yufei Wang, Jianfeng Liu, Lingzhi Xie, Ru Zhang
  • Patent number: 9664040
    Abstract: The present invention includes a hydro-shearing apparatus, a hydro-shearing system, and a method of mining waste coal. The hydro-shearing apparatus includes a fluid supply line adapted to permit the transporting of fluid, a nozzle adapted to emit the fluid, a pump adapted to recover at least the fluid, and a fluid discharge line adapted to permit the transporting of at least the fluid. The method may include positioning the hydro-shearing apparatus at least fifty feet away from a high wall of waste coal, manipulating the hydro-shearing apparatus to a vertical position within twenty feet of the top of the high wall of waste coal, operating the hydro-shearing apparatus such that a fluid stream contacts waste coal material, recovering the coal product with the pump of the hydro-shearing apparatus, and transporting the coal product away from the hydro-shearing apparatus.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: May 30, 2017
    Inventor: John J. Glista
  • Patent number: 9587289
    Abstract: A vertical drainage system for a heap leaching operation comprising vertical drainage conduits for draining fluid pockets down through the strata of a heap pile. The drainage conduits are spaced in a parallel array throughout the ore heap, and are preferably in fluid communication from a top of said ore heap to said one or more collection pipes for draining trapped and avoiding slope or geotechnical failure.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 7, 2017
    Inventor: James M. Cramer
  • Patent number: 9546542
    Abstract: The present invention pertains to a mineral exploitation method and, more specifically, to a method for extracting potassium salts from underground deposits. In the method according to the present invention, an intermediary stage is carried out between the primary mining and secondary mining stages, and in this intermediary stage sinks (8) are created that receive the water-immiscible fluid (9) used in the primary mining stage, exposing an amount of potassium chloride remaining on the cavern ceiling, at the end of the primary mining stage, which will be dissolved by a second solvent during the secondary mining stage.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 17, 2017
    Assignee: VALE S.A.
    Inventor: Jaime Daniel Colomé
  • Patent number: 9528061
    Abstract: The present methods deal with the solubilization of coal and lignocellulose biomass using pyrophosphates, polyphosphates, or derivatives thereof.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: December 27, 2016
    Assignee: Synthetic Genomics Inc.
    Inventors: Brian G. Clement, Toby Richardson, Stuart A. Underwood
  • Patent number: 9465140
    Abstract: Method and system is described for modeling one or more geophysical properties of a subsurface volume. In one example, a method for predicting strength anisotropy in subsurface formations along a wellpath comprises receiving a stress model of the subsurface formation in the area of the wellpath. Bulk strength properties of target rock are obtained and used to develop anisotropic failure criteria. The stress model may then be combined with the anisotropic failure criteria to develop an anisotropic wellbore stability model which is used to enhance hydrocarbon recovery.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 11, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Brian Ronald Crawford, Nora Lee DeDontney, Bashar Alramahi, Steinar Ottesen
  • Patent number: 9359854
    Abstract: A straddle packer tool for setting against a constraining wall includes: a drag assembly with a locking mechanism for locking a position of the drag assembly relative to the constraining wall; a mandrel installed in and axially moveable through an inner bore of the drag assembly; and a packing element housing including a first annular packing element and a second annular packing element spaced from the first annular packing element, the packing element housing positioned between a stop shoulder on the mandrel and the drag assembly, the packing element being settable to expand the first annular packing element and the second annular packing element by compression between the drag assembly and the stop shoulder. A valve sub including a pressure actuated piston is also described and may be operated to open using the straddle packer tool.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: June 7, 2016
    Assignee: RESOURCE COMPLETION SYSTEMS INC.
    Inventors: John Hughes, Ryan Dwaine Rasmussen, James Wilburn Schmidt
  • Patent number: 9271955
    Abstract: A nutritional or dietary supplement composition that strengthens and promotes a general eye health benefit for aging adults, including retinal health through the prevention, stabilization, reversal and/or treatment of visual acuity loss by reducing the risk of developing late stage or advanced age-related macular degeneration in persons with early age-related macular degeneration. The nutritional or dietary supplement composition may likewise reduce the risk of vision loss associated with the development of cataracts.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 1, 2016
    Assignee: Ohio State Innovation Foundation
    Inventor: Robert DiSilvestro
  • Patent number: 9227849
    Abstract: Disclosed are systems and methods for processing carnallite or sylvinite ores. The system includes a measuring hopper, a lye clarifier, two vertical ore dissolving apparatuses, two ore dehydrators and one wet product dehydrator, a crystallizer, and a dryer. Each dissolving apparatus has alternating supply and grounding electrodes arranged in axial alignment with the apparatus. The ore is run through both dissolving apparatuses in succession and dehydrated after each dissolving apparatus. A dissolving lye is fed to each dissolving apparatus in countercurrent flow to the solid phase ore. The saturated lye from the dissolving apparatuses is transported to a crystallizer to be cooled. Cooling the lye forms crystalline potassium chloride or artificial carnallite, which then goes for dehydration and drying.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: January 5, 2016
    Inventors: Valery Marakov, Alexey Zarubin
  • Patent number: 9175452
    Abstract: Systems and methods for filling submerged voids with a foam-fluidized fill material in an efficient and economical manner are disclosed herein. The foam fluidized fill material is a granular solid material fluidized with a foam. The foam-fluidized fill material is pumped or gravity-fed through an insertion tube into the submerged void. The insertion tube terminates at a point lying below a surface of the liquid within the void. Since the foam-fluidized fill material is heavier than the liquid, the foam-fluidized fill material exiting the insertion tube sinks to the bottom of the void and expands laterally at the bottom of the void displacing the liquid. The liquid is forced upward and out of the void where it may be collected. Further, as the fill material fills the void, the foam dissipates and the fill material self compacts, making the filled void sufficiently load bearing.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: November 3, 2015
    Assignee: Cellular Concrete Solutions, LLC
    Inventors: Brian P. Masloff, Richard Palladino
  • Patent number: 9168565
    Abstract: Well treatment particulates are coated with polyionic material and a composite is formed comprising multiple layers of polyelectrolyte, each layer composed of polyionic material counter to the polyionic material of the polyelectrolyte layer to which it is adjacent.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: October 27, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Mark Alan Vorderbruggen, Christopher John Stephenson, Naima Bestaoui-Spurr, Qi Qu
  • Patent number: 9010869
    Abstract: A solution mining method for recovering alkali values from a cavity of an underground ore formation comprising trona and/or wegscheiderite; a manufacturing process using such method to make sodium-based product(s); and a sodium-based product obtained therefrom. The method comprises: an ore dissolution phase (a) in which the incongruent double-salt in trona and/or wegscheiderite is dissolved from an ore face in a first solvent, and a cavity cleaning phase (b) in which sodium bicarbonate deposited on the ore face during the dissolution phase (a) is dissolved into a second aqueous solvent having a higher pH, hydroxide content, and/or temperature and is partly or completely converted in situ to sodium carbonate. The method further comprises withdrawing a liquor resulting from either phase to the ground surface, optionally recycling some liquor to the cavity; and passing some liquor through a crystallizer, a reactor, and/or an electrodialyser, to form at least one sodium-based product which is recovered.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Solvay SA
    Inventors: James D. Phillip, Alain Vandendoren
  • Patent number: 8998345
    Abstract: An improved solution mining method for a soluble target layer comprising a target material such as potash, wherein an elongate sump is developed within a salt layer underlying the target layer, with generally horizontal wells extending through the target layer to empty into the elongate sump, the sump capable of storing at least a portion of the salt liberated from the target layer so that an optimized proportion of target material is produced.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: April 7, 2015
    Assignee: 101061615 Saskatchewan Ltd.
    Inventor: Harvey Haugen
  • Patent number: 8991937
    Abstract: An improved solution mining method for a soluble target layer such as potash, comprising injecting spent crystallizer brine unsaturated with salt generally horizontally into the top of the target layer to enable immediate target layer dissolution with waste salt accumulating in the sump while the dissolved target material is produced.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: March 31, 2015
    Assignee: 101061615 Saskatcnewan Ltd.
    Inventor: Harvey Haugen
  • Patent number: 8986423
    Abstract: A method of heap leaching including forming a heap lift, installing a horizontal solution collection system between the heap layers including a horizontal tubing with a wireline data collection tool disposed therein, providing a heap leach model for modeling the heap leach operation including a solvent formulation and a irrigation setting, obtaining collected data from the wireline data collection tool while irrigating the heap lift, the collected data including in-situ material parameters of the heap layers and in-situ solution parameters of the solution flowing in the heap layers, modeling the heap leach operation using the collected data based on the heap leach model to generate a result, and adjusting the heap leach operation based on the result.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Kent Lang, Gilles Mathieu, Roland Banas, Robert A. Will
  • Patent number: 8979210
    Abstract: A liquid collection process with liquid guiding holes for in-situ leaching an ore body to extract rare earth elements, including: 1) multiple liquid collection channels are provided in an ore body; 2) liquid guiding holes are arranged near the bottom and on both sides of the channels, and these holes and the channels jointly constitute a multi-channel mother liquid drainage and collection control network; 3) a blocking wall is provided in the channels, a front lower part of the wall is connected to a channel outlet by a conduit controlled with a ball valve switch at the outlet; 4) a multi-channel mother liquid collection network of liquid collection engineering control system is finally formed through the alternate operation of pressure release and increase. The process reduces the loss rate of mother liquid, reduces environmental pollution, and improves the recovery rate of rare earth elements.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 17, 2015
    Assignee: Jiangxi Rare Earth & Rare Metals Tungsten Group Holding Co., Ltd.
    Inventors: Yaofeng Tan, Yan Liu, Guoqing Deng, Xiaolin He
  • Publication number: 20140357893
    Abstract: An example system includes a combustion chamber including at least one inlet and at least one outlet, and at least one reflective surface to direct shock waves in a pattern that meets at a midline nodal point. The example system also includes an ignition source to generate high enthalpy colliding and reverberating shock pressure waves and detonation gasses for dynamic pressurization. An example method for using high enthalpy colliding and/or reverberating shock pressure waves for chemical and material processing. The example method includes providing a combustion chamber including at least one inlet and at least one outlet, and at least one reflective surface to direct shock waves in a pattern that meets at a midline nodal point. The example method also includes colliding reflected or opposing combustion-induced or detonation-induced wave fronts within the combustion chamber.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Inventor: Bruce H. Peters
  • Patent number: 8899691
    Abstract: Disclosed are methods for solution mining of evaporite minerals, such as trona, comprising drilling an access well and at least two lateral boreholes; injecting a fluid; circulating the fluid through the lateral boreholes with a controlled fluid flow; and collecting a pregnant solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity at a temperature sufficient to maintain at least a portion of the solution in the cavity in the Wegscheiderite solid phase region; removing aqueous solution from the cavity; and recovering alkaline values from the removed aqueous solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity; removing aqueous solution from the cavity, wherein the temperature of the removed aqueous solution is at about the TWA point temperature; and recovering alkaline values from the removed aqueous solution.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 2, 2014
    Assignee: Sesqui Mining, LLC
    Inventors: Roger L. Day, James A. Herickhoff
  • Publication number: 20140265520
    Abstract: A method of solution mining a subterranean mineral ore deposit such as trona ore in which a borehole is drilled from a subterranean mechanically-worked mineral ore mining operation to connect a mineral ore bed to be solution mined, using subterranean drilling apparatus located proximate to the mechanically-worked mineral ore mining operation. The mineral ore bed is isolated from the mechanically-worked mineral ore mining operation by passage of the drilled borehole through an impermeable layer adjacent to the mineral ore bed to be solution mined. The mineral ore bed is then solution-mined using a mining solvent introduced into the mineral ore bed to solubilize the mineral and form a mining solution, and the resulting mining solution is withdrawn from the mineral ore bed.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: FMC WYOMING CORPORATION
    Inventor: Michael Bestgen
  • Publication number: 20140234193
    Abstract: Systems are described for dissolving metal silicates to: produce metal hydroxide; remove carbon dioxide or other acid gases from the atmosphere or other gas mixture by reacting such gases with the metal hydroxide; penetrate or excavate metal silicates; extract metals or silicon-containing compounds from metal silicates; and produce hydrogen and oxygen or other gases.
    Type: Application
    Filed: January 18, 2011
    Publication date: August 21, 2014
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Gregory Hudson Rau
  • Patent number: 8789891
    Abstract: Methods and apparatuses for producing a planar cavern are provided. The planar cavern is formed by first creating a continuous bore that extends through a subsurface resource deposit. The drill head used to create the bore can be steered in response to information about the concentration of the resource in the strata through which the drill head is passing, in order to keep the bore within resource deposit. The continuous bore can be formed by connecting first and second bores at a point within the subsurface resource deposit. After the continuous bore has been formed, a sawing assembly is placed within the continuous bore. The sawing assembly is then moved, in a continuous or in a reciprocating fashion, within the continuous bore. As the sawing assembly is moved, it is maintained under tension, to create a planar cavern. By thus exposing a large area of the resource deposit, a relatively large amount of the resource deposit can be dissolved in a solvent introduced to the planar cavern per unit time.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: July 29, 2014
    Inventors: Steven W. Wentworth, Samuel T. Ariaratnam, Robert F. Crane
  • Publication number: 20140174673
    Abstract: A method for increasing the evaporation rate of an evaporative pond containing pond liquor comprising water and at least 1% by weight of sodium carbonate, said evaporative pond being in contact with an ambient air at an ambient air temperature of more than 0° C., the method comprising the following steps: feeding part of the pond liquor to a heat exchanger; heating the pond liquor in the heat exchanger with heat and producing a heated pond liquor; feeding the heated pond liquor into a spraying device at an operating temperature of at least 10° C. above the ambient air temperature; and spraying the heated pond liquor into an open area of the evaporative pond with the spraying device, so as to evaporate at least part of the water of the pond liquor when sprayed.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 26, 2014
    Applicant: SOLVAY SA
    Inventors: Alain VANDENDOREN, Jessica A. MOTE
  • Publication number: 20140162336
    Abstract: Herein disclosed is a method for producing liquid hydrocarbon product, the method comprising disintegrating a hydrocarbon source; pretreating the disintegrated hydrocarbon source; solubilizing the disintegrated hydrocarbon source to form a slurry comprising a reactant molecule of the hydrocarbon source; admixing a biochemical liquor into the slurry, wherein the biochemical liquor comprises at least one conversion enzyme configured to facilitate bond selective photo-fragmentation of said reactant molecule of the hydrocarbon source, to form liquid hydrocarbons via enzyme assisted bond selective photo-fragmentation, wherein said conversion enzyme comprises reactive sites configured to restrict said reactant molecule such that photo-fragmentation favorably targets a preselected internal bond of said reactant molecule; separating the liquid hydrocarbons from the slurry, wherein contaminants remain in the slurry; and enriching the liquid hydrocarbons to form a liquid hydrocarbon product.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 12, 2014
    Applicant: JRST, LLC
    Inventors: John W. SZUHAY, Richard TROIANO
  • Patent number: 8708422
    Abstract: An in situ recovery of uranium operation involves circulating reactive fluids through an underground uranium deposit. These fluids contain chemicals that dissolve the uranium ore. Uranium is recovered from the fluids after they are pumped back to the surface. Chemicals used to accomplish this include complexing agents that are organic, readily degradable, and/or have a predictable lifetime in an aquifer. Efficiency is increased through development of organic agents targeted to complexing tetravalent uranium rather than hexavalent uranium. The operation provides for in situ immobilization of some oxy-anion pollutants under oxidizing conditions as well as reducing conditions. The operation also artificially reestablishes reducing conditions on the aquifer after uranium recovery is completed. With the ability to have the impacted aquifer reliably remediated, the uranium recovery operation can be considered inherently safe.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: April 29, 2014
    Assignee: Sandia Corporation
    Inventors: James L. Krumhansl, Patrick V. Brady
  • Patent number: 8678513
    Abstract: In-situ solution mining method of an ore bed, particularly containing trona, which comprises exposing to a solvent an ore region inside a borehole drilled in the ore, and dissolving a desired solute within the exposed region to provide a liquor and create a voided ‘undercut’, such undercutting making the ore susceptible to gravitational loading and crushing. Unexposed ore falls into the undercut by gravity without breaking the ore roof resulting in exposure of fresh ore to the solvent and in preventing solvent exposure to contaminating material near the roof. The desired solute is eventually dissolved away in the entire bed from its floor up to its roof. Solvent injection may be delivered through a conduit positioned inside the borehole, and may be moved by retracting or perforating the conduit. The method may employ an advancing undercut initiated up-dip and traveling down-dip, or a retreating undercut initiated down-dip and traveling up-dip.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: March 25, 2014
    Assignee: Solvay Chemicals, Inc.
    Inventors: Ronald O. Hughes, Jean-Paul Detournay, Alain Vandendoren, Larry C. Refsdal, Joseph A. Vendetti, Michael C. Montoya
  • Patent number: 8646846
    Abstract: Methods and apparatuses for producing a planar cavern are provided. The planar cavern is formed by first creating a continuous bore that extends through a subsurface resource deposit. The continuous bore can be formed by connecting first and second bores at a point within the subsurface resource deposit. After the continuous bore has been formed, a sawing assembly is placed within the continuous bore. The sawing assembly is then moved, in a continuous or in a reciprocating fashion, within the continuous bore. As the sawing assembly is moved, it is maintained under tension, to create a planar cavern. By thus exposing a large area of the resource deposit, a relatively large amount of the resource deposit can be dissolved in a solvent introduced to the planar cavern per unit time. Saturated solution can then be pumped from the planar cavern, and the resource recovered from the saturated solution by evaporation.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 11, 2014
    Inventors: Steven W. Wentworth, Samuel T. Ariaratnam, Robert F. Crane
  • Patent number: 8641150
    Abstract: A method of producing hydrocarbon fluids from a subsurface organic-rich rock formation, for example an oil shale formation, in which the oil shale formation contains water-soluble minerals, for example nahcolite, is provided. In one embodiment, the method includes the step of heating the organic-rich rock formation in situ. Optionally, this heating step may be performed prior to any substantial removal of water-soluble minerals from the organic-rich rock formation. In accordance with the method, the heating of the organic-rich rock formation both pyrolyzes at least a portion of the formation hydrocarbons, for example kerogen, to create hydrocarbon fluids, and converts at least a portion of the water-soluble minerals, for example, converts nahcolite to soda ash. Thereafter, the hydrocarbon fluids are produced from the formation.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: February 4, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Kaminsky, William A. Symington, Jesse D. Yeakel, Michele M. Thomas
  • Publication number: 20130200681
    Abstract: A liquid collection process with secondary channels for in-situ leaching an ore body to extract rare earth elements, including: 1) multiple liquid collection channels are provided in an ore body; 2) secondary channels are provided on both sides of the liquid collection channels, and all of the channels jointly constitute a multi-channel mother liquid drainage and collection control network; 3) a blocking wall is provided in the liquid collection channels, the front lower part of the wall is connected to a channel outlet by a conduit which is controlled with a ball valve switch at the outlet; 4) in the measurement and production, a multi-channel mother liquid collection network of liquid collection engineering control system is finally formed through the alternate operation of pressure release and increase; 5) the rare earth recovery rate is finally improved by adjusting the non-mineral liquid and the loss ratio of the mother liquid.
    Type: Application
    Filed: August 2, 2011
    Publication date: August 8, 2013
    Inventors: Yaofeng Tan, Yan Liu, Guoqing Deng, Xiaolin He
  • Publication number: 20130171048
    Abstract: A solution mining method for recovering alkali values from a cavity of an underground ore formation comprising trona and/or wegscheiderite; a manufacturing process using such method to make sodium-based product(s); and a sodium-based product obtained therefrom. The method comprises: an ore dissolution phase (a) in which the incongruent double-salt in trona and/or wegscheiderite is dissolved from an ore face in a first solvent, and a cavity cleaning phase (b) in which sodium bicarbonate deposited on the ore face during the dissolution phase (a) is dissolved into a second aqueous solvent having a higher pH, hydroxide content, and/or temperature and is partly or completely converted in situ to sodium carbonate. The method further comprises withdrawing a liquor resulting from either phase to the ground surface, optionally recycling some liquor to the cavity; and passing some liquor through a crystallizer, a reactor, and/or an electrodialyser, to form at least one sodium-based product which is recovered.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 4, 2013
    Applicant: SOLVAY SA
    Inventor: SOLVAY SA
  • Publication number: 20130154338
    Abstract: A liquid collection process with liquid guiding holes for in-situ leaching an ore body to extract rare earth elements, including: 1) multiple liquid collection channels are provided in an ore body; 2) liquid guiding holes are arranged near the bottom and on both sides of the channels, and these holes and the channels jointly constitute a multi-channel mother liquid drainage and collection control network; 3) a blocking wall is provided in the channels, a front lower part of the wall is connected to a channel outlet by a conduit controlled with a ball valve switch at the outlet; 4) a multi-channel mother liquid collection network of liquid collection engineering control system is finally formed through the alternate operation of pressure release and increase. The process reduces the loss rate of mother liquid, reduces environmental pollution, and improves the recovery rate of rare earth elements.
    Type: Application
    Filed: August 2, 2011
    Publication date: June 20, 2013
    Inventors: Yaofeng Tan, Yan Liu, Guoqing Deng, Xiaolin He
  • Patent number: 8282898
    Abstract: A process for formulating high purity potassium chloride from a carnallite source. The process takes advantage of solubility differences and saturation levels in a multiple salt system generated upon dissolution of carnallite. In the system, the sodium chloride is kept in solution and the magnesium chloride present in the system is controlled to be in a concentration range of between 12% and 25% by weight. This avoids co-precipitation of sodium chloride with the potassium chloride during crystallization and therefore prevents the sodium chloride from contaminating the potassium chloride. The result is high grade potassium chloride.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: October 9, 2012
    Assignee: Karnalyte Resources Inc.
    Inventor: Robin Phinney
  • Patent number: 8240774
    Abstract: A method for treating a nahcolite containing subsurface formation includes solution mining a first nahcolite bed above a hydrocarbon containing layer using a plurality of first solution mining wells. A second nahcolite bed is solution mined below the hydrocarbon containing layer using a plurality of second solution mining wells. At least one of the first solution mining wells is converted into a production well. The hydrocarbon containing layer is heated using a plurality of heaters. Formation fluid is produced from at least one converted first solution mining well.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: August 14, 2012
    Assignee: Shell Oil Company
    Inventor: Harold J. Vinegar
  • Publication number: 20120183462
    Abstract: Systems are described for dissolving metal silicates to: produce metal hydroxide; remove carbon dioxide or other acid gases from the atmosphere or other gas mixture by reacting such gases with the metal hydroxide; penetrate or excavate metal silicates; extract metals or silicon-containing compounds from metal silicates; and produce hydrogen and oxygen or other gases.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 19, 2012
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Gregory Hudson Rau
  • Publication number: 20120043801
    Abstract: Methods and apparatuses for producing a planar cavern are provided. The planar cavern is formed by first creating a continuous bore that extends through a subsurface resource deposit. The drill head used to create the bore can be steered in response to information about the concentration of the resource in the strata through which the drill head is passing, in order to keep the bore within resource deposit. The continuous bore can be formed by connecting first and second bores at a point within the subsurface resource deposit. After the continuous bore has been formed, a sawing assembly is placed within the continuous bore. The sawing assembly is then moved, in a continuous or in a reciprocating fashion, within the continuous bore. As the sawing assembly is moved, it is maintained under tension, to create a planar cavern. By thus exposing a large area of the resource deposit, a relatively large amount of the resource deposit can be dissolved in a solvent introduced to the planar cavern per unit time.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 23, 2012
    Applicant: WENTWORTH PATENT HOLDINGS INC.
    Inventors: Steven W. Wentworth, Samuel T. Ariaratnam, Robert F. Crane
  • Publication number: 20120043800
    Abstract: Methods and apparatuses for producing a planar cavern are provided. The planar cavern is formed by first creating a continuous bore that extends through a subsurface resource deposit. The continuous bore can be formed by connecting first and second bores at a point within the subsurface resource deposit. After the continuous bore has been formed, a sawing assembly is placed within the continuous bore. The sawing assembly is then moved, in a continuous or in a reciprocating fashion, within the continuous bore. As the sawing assembly is moved, it is maintained under tension, to create a planar cavern. By thus exposing a large area of the resource deposit, a relatively large amount of the resource deposit can be dissolved in a solvent introduced to the planar cavern per unit time. Saturated solution can then be pumped from the planar cavern, and the resource recovered from the saturated solution by evaporation.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 23, 2012
    Inventors: Steven William Wentworth, Samuel T. Ariaratnam, Robert F. Crane
  • Publication number: 20120035332
    Abstract: Methods and facilities are provided for extracting a metal, such as an actinide from a solid, such as an ore. A novel class of dendritic macromolecules is provided for use in such extraction having a core, a hyperbranched structure, and a plurality of units satisfying the formula —NR2(C?O)R1, in which R1 is not a continuation of the hyperbranched structure.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 9, 2012
    Inventors: Mamadou S. Diallo, Jean Frechet, Emine Boz
  • Publication number: 20120027516
    Abstract: Disclosed are methods for solution mining of evaporite minerals, such as trona, comprising drilling an access well and at least two lateral boreholes; injecting a fluid; circulating the fluid through the lateral boreholes with a controlled fluid flow; and collecting a pregnant solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity at a temperature sufficient to maintain at least a portion of the solution in the cavity in the Wegscheiderite solid phase region; removing aqueous solution from the cavity; and recovering alkaline values from the removed aqueous solution. Also disclosed are methods of solution mining that include injecting an aqueous solution into an underground trona cavity; removing aqueous solution from the cavity, wherein the temperature of the removed aqueous solution is at about the TWA point temperature; and recovering alkaline values from the removed aqueous solution.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: SESQUI MINING, LLC
    Inventors: Roger L. Day, James A. Herickhoff
  • Publication number: 20110298270
    Abstract: A method is provided herein for performing a leaching process on a substrate (113). In accordance with the method, a freeze wall (115) is created which isolates a portion (117) of a substrate, and the isolated portion of the substrate is subjected to a leaching process.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 8, 2011
    Inventor: Willem P.C. Duyvesteyn
  • Patent number: 8021461
    Abstract: A system and method are disclosed for improving component extraction from heap leach operations. Following heap leaching for some time, portions of the heap deficient in component extraction are identified, and treatment wells are drilled and remedial treatments are selectively performed on the identified portions of the heap. The remedial treatment can include hydraulically fracturing the identified portions of the heap followed by selective treatment with leach solution of the area impacted by the fracturing.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 20, 2011
    Assignee: Newmont USA Limited
    Inventor: Thomas Joseph Seal
  • Publication number: 20110080035
    Abstract: A relatively warm mineral deposit is solution mined by injecting fluid through a well drilled into the deposit and dissolving the mineral to form a production brine. Warm production brine is cooled at the surface using a heat exchanger as a crystallizer to precipitate the mineral in the exchanger and form a slurry. Crystals of the mineral in the slurry are recovered in a separation plant leaving a relatively cool, dilute or depleted brine, which is conveyed through the heat exchanger for cooling the production brine and then injected into the mineral deposit to dissolve more mineral thereby providing a continuous process. A pipe-in-pipe heat exchanger is preferably used and in a manner so that the heat exchanger also serves as a primary means for conveying the production fluid and/or slurry from the well to the separation plant.
    Type: Application
    Filed: December 3, 2010
    Publication date: April 7, 2011
    Applicant: PINNACLE POTASH INTERNATIONAL, LTD.
    Inventor: William M. Bishop
  • Patent number: 7866385
    Abstract: Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method includes treating a hydrocarbon containing formation. The method may include providing heat to the formation; producing heated fluid from the formation; and generating electricity from at least a portion of the heated fluid using a Kalina cycle.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: January 11, 2011
    Assignee: Shell Oil Company
    Inventor: Gene Richard Lambirth
  • Patent number: 7862706
    Abstract: A method of recovering hydrocarbons from water-containing hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A mined or separately collected water-containing hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be heated sufficient to initially remove water therefrom as a water vapor. The water vapor can be removed from the infrastructure via an outlet which can be controlled or shut off when the permeable body is sufficiently dewatered. The dewatered permeable body can be heated sufficient to remove hydrocarbons therefrom. During heating the hydrocarbonaceous material is substantially stationary as the constructed infrastructure is a fixed structure. Removed hydrocarbons can be collected for further processing, use in the process, and/or use as recovered.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 4, 2011
    Assignee: Red Leaf Resources, Inc.
    Inventors: Todd Dana, James W. Patten
  • Publication number: 20100264720
    Abstract: A method for producing a lignite product comprising the steps of (a) digging lignite from a lignite seam, (b) grinding the lignite, (c) forming a slurry comprising the lignite, (d) transporting the slurry to a locus for drying, and (e) drying the slurry to form a lignite product, wherein steps (a) to (c) are carried out using a mobile device.
    Type: Application
    Filed: December 17, 2008
    Publication date: October 21, 2010
    Applicants: National Power Australia Investments Limited, Australian Power Partners BV, CISL (Hazelwood) PTY Limited, Hazelwood Investment Company PTY Limited, Hazelwood Pacific PTY Limited
    Inventors: Garry Lachlan Mauger, Richard Matthew Polmear
  • Patent number: 7735935
    Abstract: A method of treating an oil shale formation in situ includes providing heat directly from one or more heaters to at least a portion of the formation. The heat is controlled to maintain an average temperature of the portion below a dissociation temperature of carbonate minerals in the portion. A first fluid is injected into the portion of the formation. A second fluid is produced from the formation. An in situ conversion process is conducted in the portion of the formation.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: June 15, 2010
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, Eric Pierre de Rouffignac, Kevin Albert Maher, Lanny Gene Schoeling, Scott Lee Wellington