Oil Patents (Class 209/171)
  • Patent number: 11517918
    Abstract: Apparatus uses engineered collection media to recover mineral particles in a mineral extraction process, e.g., for processing a tailings stream at the end of a flotation separation process. The engineered collection media are added to slurry/tailings containing the mineral particles. The engineered collection media have collection surfaces coated with a chemical selected for attracting the mineral particles to the collection surfaces so the engineered collection media becomes mineral laden media in the slurry/tailings in a loading stage. The apparatus include three stages: removing unwanted material from mineral laden media; using a stripping agent to strip the mineral particles from the mineral laden media; and separating the engineered collection media from the mineral particles and the stripping agent. The stripping agent is reused for stripping, and the engineered collection media are returned to the loading stage. The engineered collection media can have a smooth or foam-like surface.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 6, 2022
    Assignee: CiDRA Corporate Services LLC
    Inventors: Paul J. Rothman, Mark R. Fernald, Peter A. Amelunxen, Paul Dolan, Timothy Bailey, Michael Ryan
  • Patent number: 8066870
    Abstract: A system for separating hydrocarbons from a solid source including a primary separation tank including a first hydrocarbon removing device to remove hydrocarbons from a slurry of water and solids. Further, the system including a transfer device between the primary separation tank and a secondary separation tank, wherein the transfer device is configured to transfer solids from the slurry to the secondary separation tank. Further still, the system including a second hydrocarbon removal device, a fine particle separation device to remove remaining solids in the secondary separation tank, and a product collection tank to receive hydrocarbons removed from the primary and secondary separation tanks.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 29, 2011
    Assignee: M-I L.L.C.
    Inventors: Michael A. Freeman, Alex Stoian, Lewis J. Dutel, Cory C. Melancon, Richard Bingham, Paul Newman
  • Patent number: 7727384
    Abstract: A bitumen recovery process is provided which includes the step of providing a bitumen froth or a component derived from the bitumen froth as a feed material, wherein the bitumen froth is produced in a primary separation process from a slurry comprising oil sand and water. Further, the process includes the step of subjecting the feed material to froth flotation in a column flotation cell in order to recover a bitumen product from the feed material. Preferably, the froth flotation cell includes an underwash zone, wherein a bitumen-rich fraction of the feed material is passed through the underwash zone as the bitumen-rich fraction rises within the column flotation cell.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: June 1, 2010
    Assignee: Bitmin Resources, Inc.
    Inventor: William L. Strand
  • Patent number: 7727385
    Abstract: A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 1, 2010
    Assignee: Syncrude Canada Ltd.
    Inventors: Robert Siy, Jonathan Spence, Owen Neiman
  • Patent number: 7691259
    Abstract: A system for separating hydrocarbons from a solid source including a primary separation tank including a first hydrocarbon removing device to remove hydrocarbons from a slurry of water and solids. Further, the system including a transfer device between the primary separation tank and a secondary separation tank, wherein the transfer device is configured to transfer solids from the slurry to the secondary separation tank. Further still, the system including a second hydrocarbon removal device, a fine particle separation device to remove remaining solids in the secondary separation tank, and a product collection tank to receive hydrocarbons removed from the primary and secondary separation tanks.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: April 6, 2010
    Assignee: M-I L.L.C.
    Inventors: Michael A. Freeman, Alex Stoian, Lewis J. Dutel, Cory C. Melancon, Richard Bingham, Paul Newman
  • Patent number: 6935367
    Abstract: A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it is connected which enables less expensive construction and reduced operating costs in terms of both the equipment and the plant as a whole. The fluid level control apparatus comprises a vessel having a valve positioned therein which includes a valve body structured with a curved surface which provides selective and finite control of fluid flowing through the vessel of the control apparatus. In one embodiment at least one of the inlet and outlet of the control apparatus exhibit a cross-sectional area taken transverse to the intended fluid flow therethrough having a substantially horizontal dimension which is greater than a substantially vertical dimension.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: August 30, 2005
    Assignee: GL&V Management Hungary KFT.
    Inventors: Robert D. Cook, Jerry W. Hunt
  • Publication number: 20030217953
    Abstract: The present invention provides for a reactive oily bubble carrier comprising: (a) a gas bubble having an oil-coating; and (b) a collector dissolved within the oil-coating. The present invention also provides for the use a reactive oily bubble carrier in a flotation target particle separation process. The present invention also provides for a flotation target particle separation process using the reactive oily bubble carriers disclosed herein.
    Type: Application
    Filed: January 22, 2003
    Publication date: November 27, 2003
    Inventors: Zhenghe Xu, Jianjun Liu, Zhiang Zhou
  • Patent number: 6126014
    Abstract: The carbon and mineral components of fly ash are effectively separated by a continuous air agglomeration method, resulting in a substantially carboree mineral stream and a highly concentrated carbon product. The method involves mixing the fly ash comprised of carbon and inorganic mineral matter with a liquid hydrocarbon to form a slurry, contacting the slurry with an aqueous solution, dispersing the hydrocarbon slurry into small droplets within the aqueous solution by mechanical mixing and/or aeration, concentrating the inorganic mineral matter in the aqueous solution, agglomerating the carbon and hydrocarbon in the form of droplets, collecting the droplets, separating the hydrocarbon from the concentrated carbon product, and recycling the hydrocarbon.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: October 3, 2000
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: McMahon L. Gray, Kenneth J. Champagne, Dennis H. Finseth
  • Patent number: 5350430
    Abstract: An improved process is described for agglomerating ground coal in which a bridging oil is used as the agglomerating vehicle. This bridging oil is a mixture of a heavy gas oil obtained from coal/oil coprocessing and a heavy hydrocarbon oil, such as bitumen or heavy oil, preferably mixed in the proportion of about 23-40% heavy hydrocarbon oil and 60-77% heavy gas oil. The agglomerated product is mixed with additional heavy oil or bitumen and it becomes the feedstock to a coal/oil coprocessor, with heavy gas oil being formed as one of the product streams. At least part of this heavy gas oil product stream is recycled to the agglomeration stage as the heavy gas oil component of the bridging oil. This agglomeration procedure has the advantage of providing an agglomerate of excellent quality, while carrying out the agglomeration in a short time at ambient temperature and using less than 10% by weight of bridging oil.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: September 27, 1994
    Assignee: Energy Mines and Resources-Canada
    Inventors: Richard D. Coleman, Floyd N. Toll, Thomas W. McCracken, C. Edward Capes, Michio Ikura
  • Patent number: 5070064
    Abstract: An improved pretreatment method for preparing powdered catalysts with well controlled particle size distributions that are free of sub 1 micron particles comprising dispersion of the powdered catalyst in liquid comprised of either a) a hydrocarbon containing low levels of a surfactant or, b) a surfactant containing polar protic solvent, followed by decantation of the suspended finely divided sub 1 micron particles and repeating said sequence until essentially 90% of the sub 1 micron particles have been removed.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: December 3, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Edward C. Hsu, John L. Robbins
  • Patent number: 5062886
    Abstract: Disclosed is a graded metal powder for metallic pigment, comprising a metal powder wherein the metal powder has a mean particle size of from about 2.5 to about 15.0 .mu.m, the content of particles having a particle size of not greater than 1 .mu.m is not larger than about 0.5% by volume, and the metal powder has a particle size distribution such that not smaller than 97% by volume of the particles of the metal powder fall within the range between half the mean particle size of the metal powder and double the mean particle size of the metal powder. Also is disclosed a process for producing a graded metal powder by classifying metal particles dispersed in a mineral oil containing a nonionic-anionic surfactant.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: November 5, 1991
    Assignee: Showa Alumi Powder K.K.
    Inventors: Sinya Ozawa, Katsumi Kondo, Kajin Saito
  • Patent number: 4966608
    Abstract: A process is provided for removing pyritic sulfur and lowering ash content of bituminous coals by grinding the feed coal, subjecting it to micro-agglomeration with a bridging liquid containing heavy oil, separating the microagglomerates and separating them to a water wash to remove suspended pyritic sulfur. In one embodiment the coal is subjected to a second micro-agglomeration step.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: October 30, 1990
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Wanda Pawlak, Jerzy S. Janiak, Ali A. Turak, Boleslaw L. Ignasiak
  • Patent number: 4889538
    Abstract: An improved process is described for agglomeration beneficiation of ground coal in which undiluted heavy oil or bitumen is used as the agglomerating vehicle. The ground cell, water and heavy oil or bitumen are mixed at an elevated temperature sufficient to lower the viscosity of the heavy oil or bitumen to a level permitting easy mixing and at an elevated pressure sufficiently high to prevent boiling of the water. This mixing causes agglomeration of the carbonaceous solids with the heavy oil or bitumen and the agglomerates obtained are separated from the tailings containing aqueous medium and inorganic solids. The separated agglomerates are preferably used with additional heavy oil or bitumen to form a slurry feedstock for a coprocessing unit. This provides a very efficient total process since the coal agglomeration beneficiation uses a portion of the same heavy oil or bitumen feedstock which is used for coprocessing and no additional hydrocarbon diluent is required.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: December 26, 1989
    Assignee: Minister of Energy, Mines and Resources Canada
    Inventors: Josef A. Mikhlin, deceased, Michio Ikura, James F. Kelly, C. Edward Capes
  • Patent number: 4597791
    Abstract: The present invention relates to a process for the separation of gold from particulate material containing gold, which comprises introducing a hydrophobic liquid, a non-gold particulate hydrophobic bulking material and particulate, gold containing material into an aqueous liquid so that the hydrophobic liquid becomes associated with the gold and, in conjunction with the non-gold particulate hydrophobic material, forms gold bearing agglomerates bonded by the hydrophobic liquid, and separating the gold bearing agglomerates from the aqueous liquid.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: July 1, 1986
    Assignee: Bateman Engineering (International) Limited
    Inventor: George B. Siddall
  • Patent number: 4511461
    Abstract: A mixture containing oleophilic surfaced mineral particles and oleophobic gangue particles in an aqueous phase is separated by means of an apertured oleophilic endless sieve supported in a separation zone by a revolving cylindrical cage having apertured sidewalls and supported in a recovery zone by a support roller, each section of sieve surface alternately revolves through the separation zone and recovery zone. The aqueous mixture is introduced as a slurry into the rotating cage. The endless sieve partly covers the outside surface of the cylindrical cage sidewall. An oleophilic adhesive is placed on the sieve as a coating or added to the aqueous slurry in the cage or both. The mixture tumbles inside of the cage and passes through the cage sidewall apertures to the sieve surface. The oleophilic mineral particles of the mixture adhere to the oleophilic adhesive and are captured by the sieve upon contact and conveyed out of the separation zone into the recovery zone.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: April 16, 1985
    Inventor: Jan Kruyer
  • Patent number: 4496533
    Abstract: A process for purifying graphite comprising:(1) comminuting graphite containing mineral matter to liberate at least a portion of the graphite particles from the mineral matter;(2) mixing the comminuted graphite particles containing mineral matter with water and hydrocarbon oil to form a fluid slurry;(3) separating a water phase containing mineral matter and a hydrocarbon oil phase containing graphite particles; and(4) separating the graphite particles from the hydrocarbon oil to obtain graphite particles reduced in mineral matter.Depending upon the purity of the graphite desired, steps of the process can be repeated one or more times to provide a progressively purer graphite.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: January 29, 1985
    Assignee: Atlantic Richfield Company
    Inventor: Richard A. Clausius
  • Patent number: 4477338
    Abstract: A method is proposed for processing high-ash coal sludges by flotation of a slurry in the cells of flotation units, particularly for processing gas coal and open burning coal which are difficult to float, in which the coal slurry to be processed flows through the cells of the flotation unit pre-conditioned and controllably, particularly with control of the dwell time. In a preferred embodiment, the control of the dwell time occurs by a controlled distribution of the slurry to cells of the flotation unit which operate in parallel. For the purpose of controlling the dwell time of the slurry in a flotation unit, cells which are traversed in parallel are additionally connected or disconnected as a function of operating parameters, such as slurry density or solids content or solids distribution.
    Type: Grant
    Filed: March 9, 1982
    Date of Patent: October 16, 1984
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventor: Karl Hellmann
  • Patent number: 4456528
    Abstract: Mineral impurities can be effectively removed from coal by introducing oil droplets into an aqueous slurry of pulverized coal. Coal, which is lipophilic, attaches to the surface of the oil droplets and floats upwardly along with the oil droplets utilizing their buoyancy. On the other hand, mineral impurities, which are hydrophilic, are left in the aqueous slurry.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: June 26, 1984
    Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki Kaisha
    Inventors: Hidetoshi Akimoto, Ryuichi Kaji, Takeo Komuro, Yasushi Muranaka, Hideo Kikuchi, Yukio Hishinuma, Fumito Nakajima, Hiroshi Terada
  • Patent number: 4437982
    Abstract: A method of separating fine coal particles from refuse particles comprising the step of:(a) providing a coal filter cake(b) forming a slurry of fine coal particles, refuse particles in a liquid mixture comprising water and organic liquid,(c) contacting said coal filter cake with said slurry,whereby a major portion of said water and a major portion of said refuse pass through said filter cake and a major portion of said organic liquid and a major portion of said fine coal particles pass across the top of said filter cake.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: March 20, 1984
    Assignee: Conoco Inc.
    Inventor: George E. Wasson
  • Patent number: 4406664
    Abstract: An improved process for the beneficiation of coal and the separation of impurities therefrom comprising subjecting coal to surface treatment by contact with an aqueous medium comprising polymerizable monomer, polymerization catalyst and liquid organic carrier, thereby rendering said coal hydrophobic and oleophilic, the improvement comprising the high shear intermixing of the surface treated coal with at least one water wash medium thereby providing for the removal of further hydrophilic impurities, such as mineral ash from the coal. Apparatus for carrying out the process and the products prepared therefrom are also provided.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: September 27, 1983
    Assignee: Gulf & Western Industries, Inc.
    Inventors: Lester E. Burgess, Karl M. Fox, Phillip E. McGarry, David E. Herman
  • Patent number: 4339042
    Abstract: There is described a process for separating from a mixture of mineral components at least one of the components. The process comprises the steps of (a) dispersing the mixture of mineral components in water so as to form an aqueous suspension containing said mixture of mineral components, (b) mixing together said aqueous suspension and a non-polar organic liquid in which there has been dissolved or suspended an anionic collector for at least one of the components of the mixture of mineral components, the volume ratio of said aqueous suspension to non-polar organic liquid being controlled and the conditions under which said aqueous suspension and non-polar organic liquid are mixed together being such that only a small amount of energy is dissipated therein in a short time in order to effect the mixing together thereof and one liquid is uniformly dispersed in the other but a stable emulsion is not formed and (c) thereafter separating, or allowing to separate, the two liquid phases.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: July 13, 1982
    Assignee: English Clays Lovering Pochin & Company, Ltd.
    Inventors: William Windle, Charles H. Lofthouse, Howard L. Shergold
  • Patent number: 4249700
    Abstract: The present invention is directed to silicon carbide whisker recovery from a mixture of silicon carbide whiskers and carbonaceous silicon carbide particles. The invention involves shredding the mixture down to a specified size, dispersing the mixture in water to form an aqueous mixture, agitating the aqueous mixture, mixing the aqueous mixture with an immiscible organic solvent which is lighter than water, agitating the resulting water-organic solvent mixture, allowing the organic solvent and its contents to rise above the water and its contents, separating the two liquid phases into an organic solvent phase and an aqueous phase and, lastly, performing a solid-liquid separation on each of the two phases, thereby obtaining from the aqueous solution the desired silicon carbide whiskers and obtaining from the organic solvent solution a carbonaceous silicon carbide particle product.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: February 10, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Bhupendra K. Parekh, William M. Goldberger
  • Patent number: 4013505
    Abstract: A method for deinking printed wastepapers in a system of separators through which printed wastepapers, previously impregnated with surface-active agents and alkalis, and repulped in the presence of an organic hydrocarbon compound and high-adsorptive flakes obtained by precipitating solutions of metal soaps of fatty or bituminous acids with solutions of salts of alkaline earths, are forced. The adsorptive flakes containing printing ink are separated from the repulped paper stock by latent vortex action.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: March 22, 1977
    Assignee: Vyzkumny ustav papieru a celulosy
    Inventors: Cestmir Balcar, Antonin Kostka, Jaroslav Havranek, Marcel Lalak