Froth-flotation Or Differential Adherence Patents (Class 252/61)
  • Patent number: 10618058
    Abstract: Disclosed herein are methods and systems for recovery of ancylite, a rare earth mineral comprising strontium carbonate, from rare earth ore. In many embodiments, the disclosed methods and systems provide for recovery of greater than 50% of the ancylite from an ancylite containing ore. In many embodiments, the ore is subjected to flotation in the presence of an acid, for example a hydroxamic acid, such as octanohydroxamic acid. The ore may also be subjected to magnetic separation, for example wet high intensity magnetic separation.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: April 14, 2020
    Inventors: Corby G. Anderson, Hao Cui
  • Patent number: 9566589
    Abstract: Collectors for froth flotation including oxidized fatty acid compositions and oxidized and maleated compositions. In particular, use of oxidized tall oil compositions and oxidized and maleated fatty acid compositions are disclosed.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: February 14, 2017
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Phillip W. Hurd, John B. Hines
  • Publication number: 20150144570
    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: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Applicant: NALCO COMPANY
    Inventors: Bo L. Tran, Kerem Eraydin, Jianjun Liu, Royce D. Mullins, Jinming Zhang, James A. Counter
  • Patent number: 9027757
    Abstract: The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, where A, B are, independently of each other, a C2- through C5-alkylene radical R1, a C8- through C24-alkyl radical or alkenyl radical R2, R3, R4 independent of each other, H, or a C8- through C24-acyl radical, with the stipulation that at least one of the radicals R2, R3 or R4 stands for a C8- through C24-acyl radical, and x, y, z, independently of each other, stand for a whole number from 0 through 50, with the stipulation that x+y+z is a whole number from 1 through 100, in quantities of 10 through 5000 g/tonne of ore as a collector in silicate floation.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: May 12, 2015
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Klaus-Ulrich Pedain, Uwe Dahlmann
  • Publication number: 20150097135
    Abstract: A polymer solution is mechanically mixed with at least one surfactant solution under conditions preventing air access. The produced polymer-surfactant solution is saturated with a gas by increasing pressure to a value ensuring complete gas dissolution and exceeding an expected pressure of use of aphrons. Then, the pressure is rapidly reduced to a value corresponding to the expected pressure of use of the aphrons and narrow size distribution aphrons are produced.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 9, 2015
    Inventors: OLEG MIKHAILOVICH ZOZULYA, VERA ANATOLYEVNA PLETNEVA
  • Publication number: 20150096925
    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: Application
    Filed: October 8, 2014
    Publication date: April 9, 2015
    Inventors: John B. Hines, Brian L. Swift
  • Patent number: 8999188
    Abstract: The present disclosure provides a froth flotation composition including a cycloaliphatic alcohol and a reaction product of the cycloaliphatic alcohol and propylene oxide. The froth flotation composition is especially suited for use in ore and coal flotation processes.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Huntsman Corporation Australia Pty Limited
    Inventors: Salvatore Lazzaro, Andrew Smethurst, Rodney Walter Parr, Lubos Sadek, Jason Sukbeom Hong
  • Publication number: 20150090919
    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: Application
    Filed: October 1, 2013
    Publication date: April 2, 2015
    Applicant: Ecolab USA Inc.
    Inventors: James Adrian Counter, John D. Kildea
  • Publication number: 20140227520
    Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attracting mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
    Type: Application
    Filed: May 25, 2012
    Publication date: August 14, 2014
    Applicant: CiDRA Corporate Services Inc.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Publication number: 20140225021
    Abstract: The present invention relates to a method for producing a dispersion and to the use of a protein hydrolysate as a dispersant or dispersing agent. In particular, the invention relates to a method for producing a suspension as well as the use of a protein hydrolysate as a dispersant in a suspension. According to the invention it is proposed to use in particular hydrolysates of proteins with a consecutive sequence of amino acids with polar and nonpolar side groups as dispersants.
    Type: Application
    Filed: September 17, 2012
    Publication date: August 14, 2014
    Applicant: OTC GMBH
    Inventors: Gerd Dahms, Andreas Jung
  • Patent number: 8784678
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: July 22, 2014
    Assignee: Clariant S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues
  • Publication number: 20140166586
    Abstract: Lysine-based polymers, particularly copolymers of lysine and maleic acid, are useful as coagulants for clarification of wastewaters, including produced waters from oils sands mining operations. They can be advantageously used in combination with commercial coagulants, and in combination with flocculants. Such combinations may include dry blends. Also described are methods of preparation of lysine homopolymers and copolymers.
    Type: Application
    Filed: April 28, 2011
    Publication date: June 19, 2014
    Inventor: C. Steven Sikes
  • Publication number: 20140110621
    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: Application
    Filed: October 17, 2013
    Publication date: April 24, 2014
    Applicant: Georgia-Pacific Chemicals LLC
    Inventors: Michael S. Kerns, Pablo G. Dopico, John B. Hines
  • Patent number: 8701892
    Abstract: The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by reverse froth flotation of the ore using a collecting composition comprising: a) a compound of formula R1O-A-NH(CH2)nNH2 (I), wherein R1 is a straight or branched hydrocarbyl group with 12-15 carbon atoms, A is a group —CH2CHXCH2—, wherein X is hydrogen or a hydroxyl group, and n is a number 2-6; b) a compound of formula R2NH2 (II), where R2 is a hydrocarbyl group having 12-14 carbon atoms; c) a compound of formula R3NH2 (III), wherein R3 is a straight or branched, saturated or unsaturated hydrocarbyl group having 16-22 carbon atoms; and d) optionally a depressing agent for the iron mineral, wherein the amount of a) is at least 65% by weight, based on the total weight of a), b) and c), and at most 90% by weight, based on the total weight of a), b) and c), and wherein the weight ratio between c) and b) is 4:1 to 1:1.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventors: Jan Olof Gustafsson, Malin Juberg
  • Publication number: 20140061101
    Abstract: A depressor in iron ore flotation comprises sugar cane bagasse and caustic soda so as to assist in the iron ore flotation. Sugar cane bagasse is used as a depressor in iron ore flotation, and a process of preparing depressor comprising sugar cane bagasse is disclosed.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Inventors: Marcílio do Carmo Silva, Cezar Gonçalves da Silva, Flávia Alice Monteiro da Silva Oliveira, Elismar Miquelanti
  • Patent number: 8657118
    Abstract: The invention relates to a collector for the separation by flotation of carbonates contained in non-sulfurous minerals, particularly phosphoric rock, comprising at least one phosphoric ester of formula (I) wherein, R1 represents H, CH3 or C2H5, R2 represents a linear or branched alkyl or alkenyl group containing between 4 and 10 carbon atoms, R3 represents H or a suitable cation, selected from an alkali metal, an alkaline earth metal, ammonium, alkyl ammonium, alkanol ammonium or glucammonium, k represents a number comprised between 1 and 2, and n represents a number comprised between 0 and 4.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 25, 2014
    Assignees: Kao Corporation, S.A., Centre d'Etudes et de Recherches des phosphates mineraux (CERPHOS)
    Inventors: Marc Rocafull Fajardo, Joan Antoni Riaza Martinez, Miquel Mundo Blanc, Hammou Oumimoun, Moulay Brahim Jouti, Jamal Maghnouj
  • Publication number: 20140048454
    Abstract: The present invention relates to fatty amido amine collectors for the beneficiation by flotation of aqueous suspensions of ores, the use of said fatty amido-amine collectors in flotation processes for the beneficiation of ores, more particularly in reverse flotation processes for the beneficiation of silicates containing-ores.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 20, 2014
    Applicant: CECA S.A.
    Inventors: Isabelle Birken, Mathieu Spinnhirny
  • Publication number: 20140048453
    Abstract: The present invention relates to fatty alkoxylated polyamine collectors for the beneficiation by flotation of aqueous suspensions of ores, the use of said fatty alkoxylated polyamine collectors in flotation processes for the beneficiation of ores, more particularly in reverse flotation processes for the beneficiation of silicates containing-ores.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 20, 2014
    Applicant: Ceca S.A.
    Inventors: ISABELLE BIRKEN, MATHIEU SPINNHIRNY
  • Publication number: 20140021104
    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: Application
    Filed: April 10, 2012
    Publication date: January 23, 2014
    Applicant: BASF SE
    Inventors: Christian Bittner, Joerg Nieberle, Bernhard Ulrich Von Vacano, Alexsandro Berger, Roland Boehn, Guenter Oetter
  • Publication number: 20130277279
    Abstract: A blend comprising from 1 to 99 weight percent one or more polypropylene glycols wherein each polypropylene glycol has a weight average molecular weight of greater than or equal to 1000 grams/mole and from 1 to 99 weight percent one or more dipropylene glycol phenyl ethers and/or diethylene glycol phenyl ethers wherein the blend has a viscosity (ASTM D445, @ 25° C.) of less than or equal to 400 cSt and viscosity (ASTM D445, @ 40° C. of less than or equal to 200 cSt, is provided. Processes using the blend in mining applications are also provided.
    Type: Application
    Filed: December 1, 2011
    Publication date: October 24, 2013
    Applicant: Dow Brasil Sudeste Industrial LTDA
    Inventors: Yuri Alencar Marques, Marcelo Beck Graziani
  • Publication number: 20130277280
    Abstract: The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by reverse froth flotation of the ore using a collecting composition comprising: a) a compound of formula R1O-A-NH(CH2)nNH2 (I), wherein R1 is a straight or branched hydrocarbyl group with 12-15 carbon atoms, A is a group —CH2CHXCH2—, wherein X is hydrogen or a hydroxyl group, and n is a number 2-6; b) a compound of formula R2NH2 (II), where R2 is a hydrocarbyl group having 12-14 carbon atoms; c) a compound of formula R3NH2 (III), wherein R3 is a straight or branched, saturated or unsaturated hydrocarbyl group having 16-22 carbon atoms; and d) optionally a depressing agent for the iron mineral, wherein the amount of a) is at least 65% by weight, based on the total weight of a), b) and c), and at most 90% by weight, based on the total weight of a), b) and c), and wherein the weight ratio between c) and b) is 4:1 to 1:1.
    Type: Application
    Filed: December 23, 2011
    Publication date: October 24, 2013
    Applicant: Akzo Nobel Chemicals International B.V.
    Inventors: Jan Olof Gustafsson, Malin Juberg
  • Publication number: 20130270475
    Abstract: The present disclosure provides a froth flotation composition including a cycloaliphatic alcohol and a reaction product of the cycloaliphatic alcohol and propylene oxide. The froth flotation composition is especially suited for use in ore and coal flotation processes.
    Type: Application
    Filed: September 26, 2011
    Publication date: October 17, 2013
    Applicant: HUNTSMAN CORPORATION AUSTRALIA PTY LIMITED
    Inventors: Salvatore Lazzaro, Andrew Smethurst, Rodney Walter Parr, Lubos Sadek, Jason Sukbeom Hong
  • Patent number: 8534464
    Abstract: The invention relates to a method for separating insoluble components of sylvinite, in that the sylvinite is suspended in a saturated salt solution, a coagulating agent is added to the suspension, and a foaming agent comprising a hydrocarbon radical having from 6 to 16 carbon atoms is added to the composition so obtained.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: September 17, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Klaus-Ulrich Pedain
  • Publication number: 20130200291
    Abstract: The present application provides switchable cationic surfactants based on tertiary amines, and methods and systems of use thereof. The tertiary amine structure allows these switchable surfactants to reversibly switch from a non-surfactant form to a surfactant form by simple introduction of an ionizing trigger gas that comprises CO2, CS2, COS, or a mixture thereof, at a pressure and an amount sufficient to convert all or a substantial portion of the amine to said salt, where the total pressure of the ionizing trigger gas is approximately ambient pressure. These tertiary amine-based switchable surfactants are further characterized by facile switching from the surfactant form to the non-surfactant form.
    Type: Application
    Filed: January 28, 2013
    Publication date: August 8, 2013
    Applicant: Queen's University at Kingston
    Inventor: Queen's University
  • Patent number: 8501030
    Abstract: Disclosed herein are methods for removing discoloring impurities, such as carbon impurities, particularly graphite, from kaolin clay to enhance the brightness of the kaolin clays. The methods include reverse flotation processes. Also disclosed herein are high brightness kaolin products, and the uses thereof.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: August 6, 2013
    Assignee: Imerys Pigments, Inc.
    Inventors: Ismail Yildirim, Mikel Dean Smith, Robert Pruett
  • Patent number: 8496115
    Abstract: The invention relates to a method for separating insoluble components from sylvinite, wherein the sylvinite is suspended in a saturated salt brine, a coagulating agent is added to the suspension, and a foaming agent is then added to the composition thus obtained, said foaming agent comprising and ether and/or ester, wherein a) the ethers of formula 1 correspond to R—O—R? (1), where R is a linear or branched alkyl or alkenyl groups having 2 to 30 carbon atoms and R? is a linear or branched alkyl or alkenyl groups having 1 to 30 carbon atoms; b) the esters are derived from monovalent or multivalent alcohols having 1 to 30 carbon atoms (alcohol radicals); or c) the ethers and/or esters are cyclic, wherein the ring size is 6 to 30 carbon atoms.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: July 30, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Klaus-Ulrich Pedain
  • Publication number: 20130168594
    Abstract: Collectors for froth flotation including oxidized fatty acid compositions and oxidized and maleated compositions. In particular, use of oxidized tall oil compositions and oxidized and maleated fatty acid compositions are disclosed.
    Type: Application
    Filed: February 26, 2013
    Publication date: July 4, 2013
    Applicant: GEORGIA-PACIFIC CHEMICALS LLC
    Inventor: Georgia-Pacific Chemicals LLC
  • Patent number: 8469197
    Abstract: An improved frothing agent adaptable to froth flotation process to enhance coal selectivity for separation and efficiency of the froth flotation process comprises: A blended mixture of Ketone (2,6-Dimethyl-4-Heptanone) 85-89% (Wt %) Ester molecule(Tetrahydrofurfuryl acetate) 10-12% (Wt %) Epoxide conditioner (1,2-Epoxydodecane) 0.25-0.30% (Wt %) Water 4.75-5.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 25, 2013
    Assignee: Tata Steel Limited
    Inventors: Ashiwani K. Gupta, Pradip Kumar Banerjee, Debashish Bhattacharjee
  • Patent number: 8466204
    Abstract: The present disclosure is directed to a composition comprising activated magnesium hydroxide, a thickening agent for said magnesium hydroxide, water, an emulsifier, and an oil comprising tall oil fatty acid. In certain embodiments, the composition contains no caustic soda or hydrogen peroxide. The composition comprises from about 5% to about 70% by weight magnesium hydroxide, based upon the weight of the composition. The composition is useful in pulp deinking. In certain embodiments, the thickening agent may be xanthan gum, and the emulsifier may be sodium lauryl sulfate.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 18, 2013
    Assignee: Nalco Company
    Inventors: Prasad Y. Duggirala, Michael J. Murcia
  • Publication number: 20130092603
    Abstract: Formulations for value mineral collector compositions composed of at least one first collector selected from an organic ammonium salt of an organic sulfur-containing acid; and at least one second collector selected from neutral collectors and/or organic ammonium salts of an organic sulfur-containing acids, such that the second collector is different from said first collector, are provided herein, along with methods for making and using same.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 18, 2013
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventor: CYTEC TECHNOLOGY CORP.
  • Patent number: 8393473
    Abstract: The invention relates to a flotation process for removal of slimes from potash ores which includes a step in said process wherein a collector is used which is a mixture of ethoxylated fatty amines having the formulae (I) wherein R1 and R2 are, independently, a hydrocarbyl group having 1-22 C-atoms, and n is on average above 15 and less than 100, and (II) wherein R3 is a hydrocarbyl group having 8-22 carbon atoms; z is a number 1-3; X, Y and Y? are, independently, an alkyl group with 1-4 carbon atoms or the group -(EO)sH, wherein EO is an ethyleneoxy unit and s is on average 5-50, and the sum of all s is on average 15 or more, and less than 100; provided that at least one of X, Y and Y? is a group -(EO)sH; and where the molar ratio of I to II is 1:5 to 5:1. The invention also relates to said mixtures of collectors where the molar ratio of I to II is 1:5 to 5:1.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 12, 2013
    Assignee: Akzo Nobel N.V.
    Inventor: Jan Olof Gustafsson
  • Patent number: 8362304
    Abstract: Glycol ether compositions useful for metal recovery by froth flotation and processes for making the compositions are disclosed. In one process, dipropylene glycol methyl ether (DPM) is propoxylated to give a composition comprising 4 to 15 wt. % of DPM and at least 20 wt. % of tripropylene glycol methyl ether (TPM). In another process, the glycol ether composition is made from a distillation residue which comprises DPM, TPM, and a basic catalyst. Extraction of the residue with water to remove some of the basic catalyst is followed by propoxylated to give a composition which comprises less than 15 wt. % of DPM, at least 20 wt. % of TPM, and one or more PO-based glycols. In comparative froth tests, glycol ether compositions of the invention meet or exceed the performance of commercial frothers.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: January 29, 2013
    Assignee: Lyondell Chemical Technology, L.P.
    Inventors: Farhad Fadakar, Adam Chan
  • Publication number: 20130008079
    Abstract: This invention provides a semisolid complex exhibiting (i) the ability to float on water, (ii) the ability to provide liquid oil upon being deformed, and (iii) the ability to function as a fuel, the complex comprising a high proportion of liquid oil, the density of the oil being lower than the density of water, the complex also comprising fibers, the fibers being oriented in a plurality of directions, the fibers forming a framework, the framework being incorporated in the complex, the framework being substantially in the plane of the complex in case that the complex is in the form of a sheet, and the framework extending substantially over the area of the complex in case that the complex is in the form of a sheet, the complex further comprising a low proportion of bentonite, the bentonite being associated with the oil, the associating substantially involving coagulation, the oil and the bentonite being substantially held by the framework.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Inventors: Deborah Duen Ling Chung, Yong Fu
  • Patent number: 8302778
    Abstract: The invention is directed towards methods and compositions for separating materials are provided. The present invention provides a method of separating first material from a second material such as mixing the first material and the second material in a slurry with a beneficiation composition. The beneficiation composition can comprise methyl isobutyl carbinol mixture derived from a methyl isobutyl ketone and/or methyl isobutyl carbinol manufacturing process. Additionally 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 19, 2012
    Date of Patent: November 6, 2012
    Assignee: Nalco Company
    Inventor: Bo L. Tran
  • Patent number: 8257608
    Abstract: A method for conducting froth flotation using a collector which is primarily hydrocarbon in nature or is a mixture of hydrocarbons with certain oxygenates, the collectors being substantially free of polynuclear aromatics, sulfur and nitrogen.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: September 4, 2012
    Inventors: Paul A. Filler, Duane J. Lewis
  • Publication number: 20120132844
    Abstract: A method for conducting froth flotation using a collector which is primarily hydrocarbon in nature or is a mixture of hydrocarbons with certain oxygenates, the collectors being substantially free of polynuclear aromatics, sulfur and nitrogen.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Inventors: Paul A. Filler, Duane J. Lewis
  • Patent number: 8123042
    Abstract: Methods and compositions for separating materials are provided. The present invention provides a method of separating a first material from a second material such as mixing the first material and the second material in a slurry with a beneficiation composition. The beneficiation composition can comprise methyl isobutyl carbinol mixture derived from a methyl isobutyl ketone and/or methyl isobutyl carbinol manufacturing process. Additionally 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: June 18, 2007
    Date of Patent: February 28, 2012
    Assignee: Nalco Company
    Inventor: Bo L. Tran
  • Publication number: 20110290705
    Abstract: The invention relates to a method for separating insoluble components of sylvinite, in that the sylvinite is suspended in a saturated salt solution, a coagulating agent is added to the suspension, and a foaming agent comprising a hydrocarbon radical having from 6 to 16 carbon atoms is added to the composition so obtained.
    Type: Application
    Filed: February 10, 2010
    Publication date: December 1, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventor: Klaus-Ulrich Pedain
  • Publication number: 20110290704
    Abstract: The invention relates to a method for separating insoluble components from sylvinite, wherein the sylvinite is suspended in a saturated salt brine, a coagulating agent is added to the suspension, and a foaming agent is then added to the composition thus obtained, said foaming agent comprising and ether and/or ester, wherein a) the ethers of formula 1 correspond to R—O—R? (1), where R is a linear or branched alkyl or alkenyl groups having 2 to 30 carbon atoms and R? is a linear or branched alkyl or alkenyl groups having 1 to 30 carbon atoms; b) the esters are derived from monovalent or multivalent alcohols having 1 to 30 carbon atoms (alcohol radicals); or c) the ethers and/or esters are cyclic, wherein the ring size is 6 to 30 carbon atoms.
    Type: Application
    Filed: February 10, 2010
    Publication date: December 1, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventor: Klaus-Ulrich Pedan
  • Patent number: 8058550
    Abstract: This disclosure relates to a polymer that includes a first comonomer repeat unit containing a benzothiadiazole moiety, a thiophene oxide moiety, a cyclopentadithiophene oxide moiety, a thiadiazoloquinoxaline moiety, a benzoisothiazole moiety, a benzothiazole moiety, a thienothiophene moiety, a thienothiophene oxide moiety, a dithienothiophene moiety, a dithienothiophene oxide moiety, or a tetrahydroisoindole moiety. The polymer can be used as a photoactive material in a photovoltaic cell. This disclosure also relates to such photovoltaic cells, as well as modules containing such photovoltaic cells.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 15, 2011
    Assignee: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Publication number: 20110226674
    Abstract: The invention relates to a flotation process for removal of slimes from potash ores which includes a step in said process wherein a collector is used which is a mixture of ethoxylated fatty amines having the formulae (I) wherein R1 and R2 are, independently, a hydrocarbyl group having 1-22 C-atoms, and n is on average above 15 and less than 100, and (II) wherein R3 is a hydrocarbyl group having 8-22 carbon atoms; z is a number 1-3; X, Y and Y? are, independently, an alkyl group with 1-4 carbon atoms or the group -(EO)sH, wherein EO is an ethyleneoxy unit and s is on average 5-50, and the sum of all s is on average 15 or more, and less than 100; provided that at least one of X, Y and Y? is a group -(EO)sH; and where the molar ratio of I to II is 1:5 to 5:1. The invention also relates to said mixtures of collectors where the molar ratio of I to II is 1:5 to 5:1.
    Type: Application
    Filed: November 26, 2008
    Publication date: September 22, 2011
    Applicant: AKZO NOBEL N.V.
    Inventor: Jan Olof Gustafsson
  • Publication number: 20110203975
    Abstract: The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, where A, B are, independently of each other, a C2- through C5-alkylene radical R1, a C8-through C24-alkyl radical or alkenyl radical R2, R3, R4 independent of each other, H, or a C8- through C24-acyl radical, with the stipulation that at least one of the radicals R2, R3 or R4 stands for a C8- through C24-acyl radical, and x, y, z, independently of each other, stand for a whole number from 0 through 50, with the stipulation that x+y+z is a whole number from 1 through 100, in quantities of 10 through 5000 g/tonne of ore as a collector in silicate floation.
    Type: Application
    Filed: October 6, 2009
    Publication date: August 25, 2011
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Klaus-Ulrich Pedain, Uwe Dahlmann
  • Publication number: 20110121222
    Abstract: A thin-film evaporation system and method for processing a wet froth material. The system includes a horizontally positioned evaporation unit having an internal conveyor screw for systematically controlling the flow of a wet froth material through the evaporator. The system further includes a separation tank configured to remove unwanted waste materials from the final, dry froth product.
    Type: Application
    Filed: September 30, 2010
    Publication date: May 26, 2011
    Inventors: Michael P. Guymon, Ken W. Maxwell
  • Publication number: 20110095223
    Abstract: A hydrophilizing agent for a hydrophobic porous membrane, wherein the agent contains a surfactant, and the surfactant has a frothability such that the bubble height immediately after frothing, as measured according to the Ross-Miles method (JIS K 3362), using a 0.1 wt % aqueous solution of the surfactant at 25° C., is 40 mm or less, and preferably has a frothability such that the bubble height five minutes after frothing is 20 mm or less; a method for hydrophilizing a hydrophobic porous membrane using this hydrophilizing agent; and a method for testing and hydrophilizing a membrane module using this hydrophilizing agent.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Noritaka SHIBATA, Makoto IDEGUCHI, Wataru FUJII
  • Publication number: 20110011210
    Abstract: Glycol ether compositions useful for metal recovery by froth flotation and processes for making the compositions are disclosed. In one process, dipropylene glycol methyl ether (DPM) is propoxylated to give a composition comprising 4 to 15 wt. % of DPM and at least 20 wt. % of tripropylene glycol methyl ether (TPM). In another process, the glycol ether composition is made from a distillation residue which comprises DPM, TPM, and a basic catalyst. Extraction of the residue with water to remove some of the basic catalyst is followed by propoxylated to give a composition which comprises less than 15 wt. % of DPM, at least 20 wt. % of TPM, and one or more PO-based glycols. In comparative froth tests, glycol ether compositions of the invention meet or exceed the performance of commercial frothers.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 20, 2011
    Inventors: Farhad Fadakar, Adam Chan
  • Publication number: 20110001078
    Abstract: Disclosed herein are methods for removing discoloring impurities, such as carbon impurities, particularly graphite, from kaolin clay to enhance the brightness of the kaolin clays. The methods include reverse flotation processes. Also disclosed herein are high brightness kaolin products, and the uses thereof.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 6, 2011
    Applicant: Imerys Pigments, Inc.
    Inventors: Ismail Yildirim, Mikel Dean Smith, Robert Pruett
  • Patent number: 7837891
    Abstract: Methods and compositions for separating materials are provided. 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 fatty acid by-products derived from a biodiesel manufacturing process or derived from transesterification reactions involving triglycerides. Air bubbles can be provided in the slurry to form bubble-particle aggregates with the first material and the bubble-particle aggregates can be separated from the second material.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 23, 2010
    Assignee: Nalco Company
    Inventors: Bo L. Tran, Dmitri L. Kouznetsov
  • Publication number: 20100252487
    Abstract: Methods and compositions for separating materials are provided. 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 shiny with a beneficiation composition. The beneficiation composition can comprise one or more fatty acid by-products derived from a biodiesel manufacturing 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: Application
    Filed: June 17, 2010
    Publication date: October 7, 2010
    Inventor: Bo L. Tran
  • Publication number: 20100233050
    Abstract: Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosulfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates, for example hardwood lignosulfonate having a weight average molecular weight of about 3 kDa to about 12 kDa and having a relatively low sulfur content and a relatively low sulfonate content.
    Type: Application
    Filed: August 29, 2008
    Publication date: September 16, 2010
    Applicant: LIGNOTECH USA, INC.
    Inventors: Jerry D. Gargulak, Lori L. Bushar
  • Publication number: 20100213105
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Application
    Filed: July 18, 2008
    Publication date: August 26, 2010
    Applicant: CLARIANT (BRAZIL) S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues