With Modifying Agents Patents (Class 209/166)
  • Patent number: 10434520
    Abstract: The invention is related to a flotation process using an improved collector to remove alkaline earth metal carbonate impurities from phosphate ores. The flotation feed may be conditioned with the improved carbonate collector at acidic pH, and subjected to a reverse flotation. The cell overflow may be collected as waste in which carbonate minerals dominate, and the cell underflow may be the phosphate concentrate. The collector may be a combination of chemicals, comprising: (1) any kind of fatty acids, either conventional fatty acid, saponified fatty acid, or modified fatty acid; (2) chemicals with sulfonate or sulfate groups, such as dodecylbenzene sulfonic acid (DDBSA) or its salt, sodium dodecyl sulfate (SDS), sodium lauryl sulfate (SLS), sodium coco sulfate (SCS), etc.; and (3) phosphorous-bearing chemicals, such as sodium tripolyphosphate (STPP), sodium hexametaphosphate (SFMP), trisodium phosphate (TSP), Tetrasodiumpyrophosphate (TSPP), etc.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 8, 2019
    Assignee: Arr-Maz Products, L.P.
    Inventors: Zhengxing Gu, Guoxin Wang, Yu Xiong
  • Patent number: 10384958
    Abstract: The invention provides methods and compositions for green compositions and technologies. In an embodiment, the present invention provides a method of separating a first material from a second material. For example, the method can comprise mixing the first material and the second material in a slurry with a beneficiation composition. The beneficiation composition can comprise one or more glyceride and fatty acid mixtures extracted from a fuel ethanol process. Air bubbles can be provided in the slurry to form bubble-particle aggregates with the first material and the bubble-particle aggregates can be allowed to be separated from the second material.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 20, 2019
    Assignee: ECOLAB USA INC.
    Inventors: Bo L. Tran, Kerem Eraydin, Jianjun Liu, Royce D. Mullins, Jinming Zhang, James A. Counter
  • Patent number: 10376901
    Abstract: The present invention relates to the use of branched fatty alcohol-based compounds selected from the group of fatty alcohols with 12-16 carbon atoms having a degree of branching of 1-3, and their alkoxylates with a degree of ethoxylation of up to 3, as secondary collectors for the froth flotation of non-sulfidic ores, in combination with a primary collector selected from the group of amphoteric and anionic surface active compounds.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 13, 2019
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg, Elisabeth Henriksson, Henrik Nordberg
  • Patent number: 10344353
    Abstract: Methods of recovering metals from metal-bearing materials, and more particularly, methods for improving leaching efficiency in extraction processes by employing a surfactant composition in the extraction process, as well as slurries useful in the methods of recovering metals are provided.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 9, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Vladimir Mujicic, Kim Coleman, Kevin O'Brien
  • Patent number: 10315202
    Abstract: A method of recovering particles from a liquid, a froth flotation apparatus, and a method of recovering particles in a flotation cell are disclosed. In an embodiment, the method comprises a technique of exposing the particles to first-size bubbles having a first predetermined size; the first-size bubbles adhering to the particles; and exposing the particles in a liquid, with the first-size bubbles adhering to the particles, to second-size bubbles having a second predetermined size, the second predetermined size being at least approximately ten times larger than the first predetermined size. The method further comprises the second-size bubbles adhering to the particles and engulfing the first-size bubbles on the particles; and using the second-size bubbles adhering to the particles to recover the particles from the liquid. In one embodiment a first surfactant is used to form the first-size bubbles, and a second surfactant is used to form the second-size bubbles.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: June 11, 2019
    Assignee: International Business Machines Corporation
    Inventors: Julia Baldauf, Alexe Bojovschi, Stephen Moore
  • Patent number: 10307770
    Abstract: The present invention relates to the beneficiation of coal by the process of froth flotation and specifically relates to a process for the froth flotation of coal using a mixture of fatty acids and rosin acids (and/or certain derivatives of fatty acids and rosin acids) as a collector.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: June 4, 2019
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: John B. Hines, Dennis L. Kennedy, Phillip W. Hurd
  • Patent number: 10258996
    Abstract: The present invention relates to flotation of sulfidic copper-molybdenum- and gold-containing minerals. More specifically, the invention relates to sulfoxy reagent-assisted floatation for separating of sulfides of copper, molybdenum and gold from pyrite, marcasite, pyrrhotite, arsenopyrite, and other gangue minerals following aerating by an oxidizing gas and contacting by a sulfoxy reagent. To promote collection and flotation the feed mineral materials are preferably not contacted with an externally generated non-oxidizing gas to lower the dissolved molecular oxygen content prior to flotation.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: April 16, 2019
    Assignee: Barrick Gold Corporation
    Inventor: Barun Gorain
  • Patent number: 10207275
    Abstract: The present invention discloses an advantageous and effective process for the concentration of iron ores, which can be fully dry or mixed, part of the process being dry, part wet. The invention thereby improves process efficiency as a whole by increasing recovery of concentrators and increasing the useful life of the mines.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: February 19, 2019
    Assignee: VALE S.A.
    Inventor: Joaquim Donizetti Donda
  • Patent number: 10195614
    Abstract: This invention relates to a collector composition for the direct froth flotation of nonsulfide ores comprising a) 50-99 wt.-% of a mixture of fatty acids and b) 1-50 wt.-% of an N-acyl derivative of sarcosine of the formula (I) wherein R is a saturated or unsaturated hydrocarbon chain with 7 to 21 carbon atoms, wherein the mixture of comprises 10.0-35.0 wt.-% of fatty acid having a saturated C11 hydrocarbon group, 2.5-15.0 wt.-% of fatty acid having a saturated C13 hydrocarbon group, 10.0-25.0 wt.-% fatty acid having a monounsaturated C17 hydrocarbon group and 20.0-45.0 wt.-% fatty acid having a bisunsaturated C17 hydrocarbon group.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: February 5, 2019
    Assignee: Clariant International Ltd.
    Inventors: Klaus-Ulrich Pedain, Jesús Pitarch López, Gunter Lipowsky, Jacques Collin Bezuidenhout
  • Patent number: 10150839
    Abstract: Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants, for example in the beneficiation of value materials (e.g., bitumen, coal, or kaolin clay) to remove impurities such as sand. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 11, 2018
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: James T. Wright, John B. Hines, Lisa M. Arthur, Carl R. White, Kurt D. Gabrielson, Michael J. Cousin
  • Patent number: 10147913
    Abstract: The invention relates to a process for the production of a recyclable product (1, 8, 9) made from a first material, wherein before or during the production of the product (1, 8, 9) a first marking material is added to the first material and the product (1, 8, 9) is produced from the first material with the admixed marking material, wherein the first marking material can be automatically detected in a recycling plant in the first material of the product (1, 8, 9) after the production thereof.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: December 4, 2018
    Assignee: Johnson Controls Autobatterie GmbH & Co. KGaA
    Inventors: Eberhard Meissner, Anne-Laure Ledoux, Jurgen Bauer
  • Patent number: 10144012
    Abstract: Methods of increasing the rate of separating hydrophobic and hydrophilic particles by flotation have been developed. They are based on using appropriate reagents to enhance the hydrophobicity of the particles to be floated, so that they can be more readily collected by the air bubbles used in flotation. The hydrophobicity-enhancing reagents include low HLB surfactants, naturally occurring lipids, modified lipids, and hydrophobic polymers. These methods can greatly increase the rate of flotation for the particles that are usually difficult to float, such as ultrafine particles, coarse particles, middlings, and the particles that do not readily float in the water containing large amounts of ions derived from the particles. In addition, new collectos for the flotation of phosphate minerals are disclosed.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: December 4, 2018
    Assignee: MINERAL AND COAL TECHNOLOGIES, INC.
    Inventor: Roe-Hoan Yoon
  • Patent number: 10118183
    Abstract: The invention relates to a process for selective flotation of kainite from crushed crude potash salts or, for example, from crystallized salt mixtures obtained by evaporation processes, which in addition to kainite may contain further minerals such as halite, sylvine and other salt minerals, for example, in order to produce a kainite concentrate fraction and a residues fraction. The separation process is characterized in that the crushed or crystallized salt mixture is intensively mixed as a crystallizate suspension with a combination of conditioning agents consisting of a sulfated fatty acid or its alkali metal salt as collecting reagent and a frothing agent known for flotation (for example, glycol ether, monohydric aliphatic alcohols, terpene alcohols, polyglycol ethers, etc.) and is then separated by agitator-driven or pneumatic flotation into a kainite concentrate fraction and a residues fraction. The resulting fractions may be further processed in downstream processes.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: November 6, 2018
    Assignee: K+S AKTIENGESELLSCHAFT
    Inventors: Uwe Wachsmuth, Jochen Brod
  • Patent number: 10105714
    Abstract: The present invention relates to a process for treating an earth contaminated by at least one radionuclide such as cesium 137Cs comprising at least one step of separating said radionuclide by dispersed air flotation foam produced by blowing air bubbles in a suspension comprising said earth and at least one collector. The present invention also relates to the flotation foam obtained by implementing such a process.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: October 23, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Sylvain Faure, Marc Messalier
  • Patent number: 10105713
    Abstract: The instant invention relates to a composition in form of a stable aqueous emulsion comprising a) 1-50 wt.-% of at least one water insoluble thionocarbamate collector selected from the group consisting of dialkyl thionocarbamates, alkyl alkoxycarbonyl thionocarbamates and alkyl allyl thionocarbamates, b) 1-50 wt.-% of one or a mixture of surface active agents of the general formula wherein R1 is a saturated or unsaturated, branched or linear C3 to C30 aliphatic or aromatic hydrocarbon group, R2 and R3 are independently from each other hydrogen or a C1 to C4 alkyl group, R4 is hydrogen or —CH2—COOX where X is hydrogen or sodium salt or potassium salt or ammonium salt, and n and m are independently from each other 0 to 50, c) 0.1-20 wt.-% of a mixture of at least one alcohol and at least one ether and/or ester, e) 1-90 wt.-% of water.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: October 23, 2018
    Assignees: CLARIANT INTERNATIONAL LTD., CLARIANT S.A, CLARIANT (CHILE) LTDA.
    Inventors: Antonio Pedro De Oliveira Filho, Jesus Pitarch López, Wagner Claudio Da Silva, Gunter Lipowsky, Jacques Collin Bezuidenhout, Jaime Osvaldo Gomez Becerra, Rodrigo Alexis Caris Andrade, Franco Aurelio Constanzo Yanez
  • Patent number: 10052637
    Abstract: What is presented is a material processing system for processing tailings discharged from an ore processing system. The tailings comprise coarse waste rock, the fine waste rock, coarse valuable product, and the fine valuable product. The material processing system comprises a classification element, a coarse flotation element, and a fines flotation element arranged to separate the coarse valuable product, the coarse waste rock, the fine valuable product, and the fine waste rock. The classification element separates the coarse waste rock and/or the coarse valuable product from the fine waste rock and/or the fine valuable product. The coarse flotation element separates the coarse waste rock from the coarse valuable product, the fine waste rock, and/or the fine valuable product. The fines flotation element separates the fine valuable product from the coarse waste rock, the fine waste rock, and/or the coarse valuable product.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: August 21, 2018
    Assignee: Eriez Manufacturing Co.
    Inventors: Michael J. Mankosa, Jaisen N. Kohmuench, Eric S. Yan, Reginaldo Sérgio Liberato
  • Patent number: 10046302
    Abstract: The present invention relates to an apparatus for manufacturing a potassium compound and a method of recovering a potassium compound from a brine, and provides the apparatus for manufacturing the potassium compound, including: a continuous pre-treatment apparatus including a crushing portion, a pulverization portion, and a particle size separation portion for processing a mixed raw material salt obtained after lithium, magnesium, and calcium are extracted from a brine to have a particle size for easy separation and sorting; a continuous potassium compound lump recovering apparatus continuously separating and recovering the potassium compound from the pre-treated mixed raw material salt; a continuous potassium compound separating and sorting apparatus continuously separating and sorting potassium chloride and a glaserite (Na2SO4.3K2SO4) from the recovered potassium compound; and a continuous potassium sulfate conversion apparatus extracting potassium sulfate from the separated glaserite.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 14, 2018
    Assignees: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, POSCO, MPPLY CO., LTD.
    Inventors: Uong Chon, Gi-Chun Han, Im Chang Lee, Ki Young Kim, Woon kyoung Park
  • Patent number: 10029284
    Abstract: Methods and systems for achieving higher efficiencies and capacities in sorting feed material are described herein, such as for separating desirable “good” rock or ore from undesirable “bad” rock or ore in an unsegregated, unseparated stream of feed material. In the disclosure, higher efficiencies are achieved with combinations of multiple sensor/diverter cells in stages in a cascade arrangement. The number and combination of cells in the cascade may be determined through a priori characterization of probabilities involved in sensor/rock and rock/diverter interactions, and mathematical determinations of the optimal number and combination of stages based on this probability. Further, as disclosed herein, desired sorting capacities are achieved through addition of multiple cascades in parallel until the desired sorting capacity is reached.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 24, 2018
    Assignee: MineSense Technologies Ltd.
    Inventors: Andrew Sherliker Bamber, Andrew Csinger, David Poole
  • Patent number: 10022759
    Abstract: A method for industrial refining of coal ash created in power plants and carbonaceous ashes produced in other combustion processes by separating coal from said ashes and returning it to use and by recovering a substantially coal-free ash fraction obtained in the refining. In the method, coal ash and at least one ash fraction created by gasification technique in combustion plants are carefully proportioned in relation to one another and formed into a slurry mixture by means of an efficient dispersion technique, the slurry being then led to a flotation step, where a fraction rich in coal and a siliceous fraction poor in coal and a fraction dissolving in the process water are separated by flotation.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: July 17, 2018
    Assignee: MICROPULVA LTD OY
    Inventors: Risto Mannonen, Jouko Niemi
  • Patent number: 10000590
    Abstract: A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 19, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jason L. Kreider, Michael S. Matson
  • Patent number: 9972830
    Abstract: A method of recovering lithium cobalt oxide from spent lithium ion batteries, wherein said method is more environmentally friendly than the methods presently known in the art. The method includes a froth flotation step using renewable and biodegradable solvents such as terpenes and formally hydrated terpenes. The method can also include a relithiation step to return the Li:Co ratio back to about 1:1 for use in second-life applications.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: May 15, 2018
    Assignee: Warner Babcock Institute for Green Chemistry, LLC
    Inventors: Sarah L. Poe, Christopher L. Paradise, Laura R. Muollo, Reshma Pal, John C. Warner, Michael B. Korzenski
  • Patent number: 9889452
    Abstract: There is provided methods for separating a target material from a raw material by mixing the raw material with water to form a slurry, adding a collector compound to the slurry to modify a relative hydrophobicity of a surface of the target material, adding a facilitator compound to enhance the modification of the relative hydrophobicity of the surface, and forming a froth including a concentrate of the target material. Disclosed methods may also include adding a facilitator compound to a raw material slurry that has been treated with a collector compound and a reagent for neutralizing the collector compound.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 13, 2018
    Assignee: CHEMTREAT, INC.
    Inventors: Brian Danyliw, John Richardson
  • Patent number: 9879102
    Abstract: A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: January 30, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jason L. Kreider, Michael S. Matson
  • Patent number: 9809774
    Abstract: A process for separating a solid having two or more components, at least one of which is lyophobic and at least one of which is lyophilic. The process comprises, in a single step, comminuting a mixture of the solid in a first liquid to which one of the components is lyophilic and to which the other component is lyophobic and in a second liquid which is immiscible with the first liquid and which will wet the lyophobic component to form agglomerates or floes of the lyophobic component and the second liquid in a mill having positive transport capability such that the mill causes the mixture to be transported therethrough. The second liquid comprises a bio-oil, bio-diesel or combination thereof. The agglomerates are then separated from the mixture. This process may be used for beneficiating a coal containing ash.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: November 7, 2017
    Assignee: Converde Energy Inc.
    Inventors: Olev Trass, Michael David McLaren
  • Patent number: 9777235
    Abstract: This document relates to a fuel oil composition comprising: (i) a solid hydrocarbonaceous and/or solid carbonaceous material, wherein the material is in particulate form, and wherein at least about 90% by volume (% v) of the particles are no greater than about 20 microns in diameter; and (ii) a liquid fuel oil; wherein the solid hydrocarbonaceous and/or solid carbonaceous material is present in an amount of at most about 30 by mass (% m) based on the total mass of the fuel oil composition. The invention further relates a process for the preparation of this fuel oil composition, a method of changing a grade of a liquid fuel oil, and a method for adjusting the flash point of a liquid fuel oil.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 3, 2017
    Assignee: Allard Services Limited
    Inventors: Paul Snaith, John Francis Unsworth
  • Patent number: 9776194
    Abstract: A method of separating heavy mineral particles, such as zircon, monazites, xenotime etc., from a sample of quartz crystal powder, comprises the steps of: a. conditioning the quartz powder suspected of containing heavy mineral particles as an aqueous pulp using a froth-flotation agent; b. subjecting the conditioned pulp to froth flotation to obtain a tailing; c. combining the tailing with an aqueous solution having a density greater than that of quartz and less than that of a heavy mineral which it is desired to separate; and d. centrifuging the combination. The separated heavy mineral crystals can then be characterized using a micro-analysis technique.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: October 3, 2017
    Assignee: Heraeus Quartz UK Limited
    Inventor: Michael Schindler
  • Patent number: 9724706
    Abstract: The present invention relates to a method for the flotation of silicates from ores in the presence of a collecting agent and an effective amount of a froth modifier/collecting booster comprising at least one of the compounds of general formula I or mixtures thereof: wherein X is C1-C3 alkyl; R? is straight or branched hydrocarbyl group containing 8 to 22 carbon atoms; n is integer from 2-4; m can vary from 0 to 2 and R? is X or —(CH2)n-N(X)2, with the proviso that when R? is —(CH2)n-N(X)2, then m is 1.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: August 8, 2017
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Odair Alves De Lima, Kelly Ivone Pina Albino
  • Patent number: 9725576
    Abstract: The present invention concerns a process for manufacturing white pigment containing products. The white pigment containing products are obtained from at least one white pigment and impurities containing material via froth flotation.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 8, 2017
    Assignee: Omya International AG
    Inventor: Jörg Sötemann
  • Patent number: 9694367
    Abstract: A method for processing a heavy mineral concentrate obtained from froth treatment tailings to produce a zirconium concentrated product, including subjecting the heavy mineral concentrate to froth flotation, subjecting a flotation product to initial gravity separation, subjecting an initial gravity separation product to primary dry separation, subjecting a primary dry separation product to finishing gravity separation, and subjecting a finishing gravity separation product to finishing dry separation to produce a finishing dry separation product as the zirconium concentrated product.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: July 4, 2017
    Assignee: TITANIUM CORPORATION, INC.
    Inventors: Kevin Moran, Jacques Doiron
  • Patent number: 9691529
    Abstract: A composite magnetic material contains metal magnetic powder composed of metal magnetic particles, and mica interposed between the metal magnetic particles as an inorganic insulator. The mica has an Fe content of 15 wt % or less per 100 wt % of the mica in terms of Fe2O3. To manufacture the composite magnetic material, first, mixed powder is prepared by mixing the metal magnetic powder and the mica so as to be dispersed into each other. Next, a compact is formed by pressure-molding the mixed powder. Finally, the compact is heat-treated.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 27, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi Takahashi, Shota Nishio
  • Patent number: 9675980
    Abstract: A flotation process for recovering feldspar from a feldspar containing feed material is disclosed. The process includes forming an aqueous suspension of a feldspar containing feed material, in the absence of hydrofluoric acid, wherein the suspension includes from 0.004 to 0.3% wt. of a flotation reagent including: (a) one or more amines, containing at least one aliphatic hydrocarbon chain, linear or branched, saturated or unsaturated, including 8 to 50 carbon atoms, or a salt thereof; and (b) one or more primary, secondary or tertiary alcohols, containing at least one aliphatic hydrocarbon chain, linear or branched, saturated or unsaturated, including 8 to 50 carbon atoms; the ratio of (a) to (b) ranging from 500:1 to 1:40 by weight. The process further includes agitating the obtained suspension to produce a feldspar containing fraction, and separating the feldspar containing fraction.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: June 13, 2017
    Assignees: Imerys Ceramics France, Universite de Lorraine, Center National de la Recherche Scientific (C.N.R.S.)
    Inventor: Lev O. Filippov
  • Patent number: 9643193
    Abstract: The invention provides methods and compositions for improving a froth flotation type separation. The method uses a microemulsion to improve the effectiveness of a frother. The improvement allows for low dosages of frother to work as well as much greater amounts of non-microemulsified frother.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 9, 2017
    Assignee: ECOLAB USA INC.
    Inventors: James Adrian Counter, John D. Kildea
  • Patent number: 9631039
    Abstract: A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 25, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jason L. Kreider, Michael S. Matson
  • Patent number: 9567655
    Abstract: Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: February 14, 2017
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Michael S. Kerns, Pablo G. Dopico, John B. Hines
  • Patent number: 9566590
    Abstract: The invention relates to a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RO—X—NH2 (Ia); RO—X—NH3+Y? (Ib); RO—X—NH—Z—NH2 (IIa); and RO—X—NH—Z—NH3+Y? (IIb), in which X is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Z is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Y? is an anion; and R is an aliphatic group of the formula (I) C5H11CH(C3H7)CH2— (I) wherein the C5H11 moeity of the aliphatic group of the formula (I) comprises 70 to 99% by weight n-C5H11—, and 1 to 30% by weight C2H5CH(CH3)CH2— and/or CH3CH(CH3)CH2CH2—.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: February 14, 2017
    Assignee: BASF SE
    Inventors: Christian Bittner, Joerg Nieberle, Bernhard Ulrich Von Vacano, Alexsandro Berger, Roland Boehn, Guenter Oetter
  • Patent number: 9561512
    Abstract: Compounds of the formulae: RO—X—NH2 (Ia); RO—X—NH3+Y? (Ib); RO—X—NH—Z—NH2 (IIa); and RO—X—NH—Z—NH3+Y? (IIb), in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Y? is an anion; and R is an aliphatic iso C13H27-group with average branching degree ranging from 1.5 to 3.5. The compounds are particularly suitable as flotation collectors for enriching an iron mineral from a silicate-containing iron ore.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: February 7, 2017
    Assignee: BASF SE
    Inventors: Christian Bittner, Bernhard Ulrich von Vacano, Alexsandro Berger, Roland Boehn, Guenter Oetter, Joerg Nieberle
  • Patent number: 9550191
    Abstract: The present invention relates to a method for the flotation of silicates from ores in the presence of a collecting agent and an effective amount of a froth modifier/collecting booster comprising at least one of the compounds of general formula (I) or mixtures thereof: wherein X is C1-C3 alkyl; R? is straight or branched hydrocarbyl group containing 8 to 22 carbon atoms; n is integer from 2-4; m can vary from 0 to 2 and R? is X or —(CH2)n-N(X)2, with the proviso that when R? is —(CH2)n-N(X)2, then m is 1.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: January 24, 2017
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Odair Alves De Lima, Kelly Ivone Pina Albino
  • Patent number: 9545636
    Abstract: Processing of mineral material containing precious metal with one or more sulfide minerals and non-sulfide gangue minerals including acid-consuming carbonate may include preparation of a sulfide concentrate by flotation with the flotation or conditioning prior to flotation using a gas comprising carbon dioxide. Flotation may be at an acidic pH without prior decomposition of the acid-consuming carbonate and may be without addition of acid for pH adjustment.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: January 17, 2017
    Assignee: NEWMONT USA LIMITED
    Inventors: James Nicholas Orlich, Ronel Du Plessis Kappes, John C. Gathje
  • Patent number: 9527090
    Abstract: Disclosed herein is a process for the recovery of a metal from an ore using a collector composition. The process includes contacting the ore with the collector composition. The collector composition can include sulfur-containing compounds comprising (i) mercaptans comprising branched C10 mercaptans compounds selected from the group consisting of 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, and combinations thereof; and (ii) sulfides comprising branched C20 sulfides represented by the structure R1—S—R2, wherein R1 and R2 are each independently a functional group derived from an olefin, wherein the olefin comprises 5-methyl-1-nonene, 3-propyl-1-heptene, 4-ethyl-1-octene, 2-butyl-1-hexene, or combinations thereof.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 27, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jim D. Byers, Michael S. Matson, Jason L. Kreider
  • Patent number: 9511378
    Abstract: Collector compositions and methods for making and using same to purify one or more crude materials are provided. The collector composition can include one or more amidoamines having the chemical Formula I and one or more amines having the chemical Formula IV, where a weight ratio of the amidoamine to the amine can be about 99:1 to about 1:99.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: December 6, 2016
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: John B. Hines, Brian L. Swift
  • Patent number: 9505011
    Abstract: Disclosed herein is a process for the recovery of a metal from an ore using a collector composition. The process includes contacting the ore with the collector composition. The collector composition can include sulfur-containing compounds comprising (i) mercaptans comprising branched C10 mercaptans compounds selected from the group consisting of 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, and combinations thereof; and (ii) sulfides comprising branched C20 sulfides represented by the structure R1—S—R2, wherein R1 and R2 are each independently a functional group derived from an olefin, wherein the olefin comprises 5-methyl-1-nonene, 3-propyl-1-heptene, 4-ethyl-1-octene, 2-butyl-1-hexene, or combinations thereof.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 29, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jim D. Byers, Michael S. Matson, Jason L. Kreider
  • Patent number: 9457357
    Abstract: Collector compositions and methods for making and using same are provided. The collector can include one or more etheramines and one or more amidoamines. A liquid suspension or slurry comprising one or more particulates can be contacted with the collector to produce a treated mixture. A product can be recovered from the treated mixture that includes a purified liquid having a reduced concentration of the particulates relative to the treated mixture, a purified particulate product having a reduced concentration of liquid relative to the treated mixture, or both.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 4, 2016
    Assignee: Georgia-Pacific Chemicals LLC
    Inventor: Luiz Henrique Martins
  • Patent number: 9447481
    Abstract: The present invention shows polythiol compositions containing dipentene dimercaptans and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such polythiol compositions. Flotation processes for recovering metals, such as copper and molybdenum, from ores using the mining chemical collector compositions also are shown.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 20, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jim D. Byers, Michael S. Matson
  • Patent number: 9440242
    Abstract: The invention provides methods and compositions for improving a froth flotation type separation. The method uses a microemulsion to improve the effectiveness of a frother. The improvement allows for low dosages of frother to work as well as much greater amounts of non-microemulsified frother.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: September 13, 2016
    Assignee: Ecolab USA Inc.
    Inventors: James Adrian Counter, John D. Kildea
  • Patent number: 9421556
    Abstract: Depressants comprising one or more types of polysaccharides comprising one or more types of pentosan units are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more collecting agents and one or more of the depressants.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: August 23, 2016
    Assignee: Kemira Oyj
    Inventors: Marcelo Moreira Da Costa, Jorge Eduardo Langsch, Paulo Henrique Morais, Lucas Moore
  • Patent number: 9371356
    Abstract: A process for separating amino acids and peptides from raw and digested farm manure is disclosed. The raw manure may be recovered from sand bedding used in the cow stalls of some farms. The process involves the steps of precipitating out struvite and separating a stream rich in amino acids and peptides from a mineral rich stream in a dissolved air floatation machine. Struvite precipitation is accomplished by the addition of polydicyandiamide and an acrylate based polymer, while the separation of the stream rich in fibers, amino acids and peptides from a mineral rich streams is accomplished by the addition of an acrylamide chloride copolymer.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: June 21, 2016
    Inventor: Aicardo Roa-Espinosa
  • Patent number: 9346062
    Abstract: The present invention relates to flotation of sulfidic copper- molybdenum- and gold-containing minerals. More specifically, the invention relates to sulfoxy reagent-assisted flotation for separating of sulfides of copper, molybdenum and gold from pyrite, marcasite, pyrrhotite, arsenopyrite, and other gangue minerals following aerating by an oxidizing gas and contacting by a sulfoxy reagent. To promote collection and flotation the feed mineral materials are preferably not contacted with an externally generated non-oxidizing gas to lower the dissolved molecular oxygen content prior to flotation.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: May 24, 2016
    Assignee: Barrick Gold Corporation
    Inventor: Barun Gorain
  • Patent number: 9346061
    Abstract: The invention concerns a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RC(O)N(Z—O—X—NH2)2 (Ia); RC(O)N(Z—O—X—NH2)2H+ Y? (Ib); in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Y? is an anion; and R is a saturated or unsaturated, linear or branched, aliphatic or aromatic moiety having between 7 and 23 carbon atoms. The invention also relates to the novel compounds according to formulae (Ia) and (Ib), compositions comprising said compounds and the use of compounds and formulations as collectors for enriching of iron mineral.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: May 24, 2016
    Assignee: BASF SE
    Inventors: Christian Bittner, Joerg Nieberle, Bernhard Ulrich von Vacano, Alexsandro Berger, Roland Boehn, Guenter Oetter
  • Patent number: 9314823
    Abstract: Methods and systems for achieving higher efficiencies and capacities in sorting feed material are described, such as for separating desirable “good” rock or ore from undesirable “bad” rock or ore in an unsegregated, unseparated stream of feed material. Higher efficiencies are achieved with combinations of multiple sensor/diverter cells in stages in a cascade arrangement. The number and combination of cells in the cascade may be determined through a priori characterization of probabilities involved in sensor/rock and rock/diverter interactions, and mathematical determinations of the optimal number and combination of stages based on this probability. Further, desired sorting capacities are achieved through addition of multiple cascades in parallel until the desired sorting capacity is reached.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: April 19, 2016
    Assignee: MineSense Technologies Ltd.
    Inventors: Andrew Sherliker Bamber, Andrew Csinger, David Poole
  • Patent number: RE46235
    Abstract: A process for the flotation of non-sulfidic minerals or ores, is disclosed in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reagent system, and a floated foam containing the non-sulfidic mineral or ores is formed therein along with a flotation residue comprising the gangue polymeric esterquats as the collector polymeric esterquats. The polymeric esterquats are obtained by reacting alkanolamines with a mixture of monocarboxylic acids and dicarboxylic acids and quaternizing the resulting esters, optionally after alkoxylation.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 13, 2016
    Assignee: Cognis IP Management CMBH
    Inventors: Joaquin Bigorra Llosas, Dietger Koppl, Simone Hoffmann-Doerr, Klaus Hinrichs