Patents by Inventor Anders Klingberg
Anders Klingberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10543493Abstract: The present invention relates to a compound obtainable by reacting an N-acyl neutral amino acid or a salt thereof, or an N-acyl neutral amino acid oligopeptide or a salt thereof with a monohydroxy monocarboxylic acid or a salt thereof. This compound is useful as a collector in a process for froth flotation of non-sulfidic ores, especially phosphate ores. The invention also relates to a method which comprises the steps of a) conditioning a pulped phosphate ore, wherein the phosphate ore comprises a calcium phosphate mineral or a mixture of such minerals, and gangue minerals, with an effective amount of a calcium phosphate mineral collector reagent, which is the above-mentioned compound, and optionally other flotation aids and b) performing a froth flotation process to recover the calcium phosphate mineral(s).Type: GrantFiled: July 2, 2014Date of Patent: January 28, 2020Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg
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Patent number: 10376901Abstract: 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: GrantFiled: September 15, 2015Date of Patent: August 13, 2019Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg, Elisabeth Henriksson, Henrik Nordberg
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Patent number: 10100146Abstract: The present invention relates to a compound obtainable by the condensation of a polyol having 3-4 hydroxyl groups, adicarboxylic acid or a derivative thereof, an alkanolamine and a fatty acid, followed by reaction with an alkylating agent. This compound is useful as a collector in a process for the reverse froth flotation of non-sulfidic ores containing silicate as impurities, especially phosphate ores.Type: GrantFiled: December 15, 2014Date of Patent: October 16, 2018Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL, B.V.Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg
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Publication number: 20170252753Abstract: 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, incombination with a primary collector selected from the group of amphoteric and anionic surface active compounds.Type: ApplicationFiled: September 15, 2015Publication date: September 7, 2017Applicant: Akzo Nobel Chemicals International B.V.Inventors: Natalija SMOLKO-SCHVARZMAYR, Anders KLINGBERG, Elisabeth HENRIKSSON, Henrik NORDBERG
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Publication number: 20160129456Abstract: The present invention relates to a compound obtainable by reacting an N-acyl neutral amino acid or a salt thereof, or an N-acyl neutral amino acid oligopeptide or a salt thereof with a monohydroxy monocarboxylic acid or a salt thereof. This compound is useful as a collector in a process for froth flotation of non-sulfidic ores, especially phosphate ores. The invention also relates to a method which comprises the steps of a) conditioning a pulped phosphate ore, wherein the phosphate ore comprises a calcium phosphate mineral or a mixture of such minerals, and gangue minerals, with an effective amount of a calcium phosphate mineral collector reagent, which is the above-mentioned compound, and optionally other flotation aids and b) performing a froth flotation process to recover the calcium phosphate mineral(s).Type: ApplicationFiled: July 2, 2014Publication date: May 12, 2016Inventors: Natalija Smolko-Schvarzmayr, Anders Klingberg
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Patent number: 8936159Abstract: The present invention relates to the use of a polymeric quaternary ester product as a collector in a froth flotation process, to a method for froth flotation utilizing the polymeric quaternary ester, to the polymeric quaternary ester as such, and to methods for the production of the polymeric quaternary ester.Type: GrantFiled: May 25, 2011Date of Patent: January 20, 2015Assignee: Akzo Nobel Chemicals International B.V.Inventors: Natalija Gorochovceva, Anders Klingberg
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Publication number: 20140144814Abstract: The present invention relates to the use of a polymeric quaternary ester product as a collector in a froth flotation process, to a method for froth flotation utilizing the polymeric quaternary ester, to the polymeric quaternary ester as such, and to methods for the production of the polymeric quaternary ester.Type: ApplicationFiled: May 25, 2011Publication date: May 29, 2014Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Natalija Gorochovceva, Anders Klingberg
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Patent number: 8492572Abstract: A composition comprising 40 to 90 wt % of at least one fatty amine carboxylate salt, water, and the carboxylic acid corresponding to said carboxylate is provided. In the composition, the weight:weight ratio of carboxylic acid:water is in the range of from 20:1 to 1:1. The inventive compositions have a pour point at a temperature of below 30° C.Type: GrantFiled: June 15, 2010Date of Patent: July 23, 2013Assignee: Akzo Nobel Chemicals International B.V.Inventors: Anders Klingberg, Magnus Svensson
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Patent number: 8353405Abstract: The invention relates to a reverse froth flotation process for treating a calcium carbonate ore containing silicates. The process comprises the use of two collectors selected from the group consisting of fatty tri-lower-alkyl quaternary ammonium compounds, fatty di-lower-alkyl benzyl quaternary ammonium compounds, fatty lower-alkyl di-benzyl quaternary ammonium compounds, di-fatty di-lower-alkyl quats, di-fatty lower-alkyl benzyl quats, and fatty bis-imidazoline quats. The use of a combination of different quats was found to result in a synergetic performance of the collectors.Type: GrantFiled: April 18, 2007Date of Patent: January 15, 2013Assignee: Akzo Nobel N.V.Inventors: Anders Klingberg, Elisabeth Henriksson
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Publication number: 20120116107Abstract: A composition comprising 40 to 90 wt % of at least one fatty amine carboxylate salt, water, and the carboxylic acid corresponding to said carboxylate is provided. In the composition, the weight:weight ratio of carboxylic acid:water is in the range of from 20:1 to 1:1. The inventive compositions have a pour point at a temperature of below 30° C.Type: ApplicationFiled: June 15, 2010Publication date: May 10, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Anders Klingberg, Magnus Svensson
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Patent number: 7954643Abstract: A derivative of aspartic acid is used as a collector for a phosphate containing mineral, such as apatite, in a froth flotation process. According to the invention the collector has a high selectivity for phosphate containing minerals even in the presence of carbonate minerals, such as calcite. The derivative has the formula (I) where RI is a hydrophobic group containing a hydrocarbon group of 6-24 carbon atoms; RII is an alkyl group with 1-7 carbon atoms or a group of the formula (B)yH, in which B is an alkyleneoxy group with 2-4 carbon atoms and y is a number from 1 to 10; and M is a group selected from the group consisting of a cation or hydrogen. Methods for producing the derivative are also described.Type: GrantFiled: November 5, 2004Date of Patent: June 7, 2011Assignee: Akzo Nobel N.V.Inventors: Ludwig Eisenhuth, Elisabeth Henriksson, Anders Klingberg
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Publication number: 20090206010Abstract: The invention relates to a reverse froth flotation process for treating a calcium carbonate ore containing silicates. The process comprises the use of two collectors selected from the group consisting of fatty tri-lower-alkyl quaternary ammonium compounds, fatty di-lower-alkyl benzyl quaternary ammonium compounds, fatty lower-alkyl di-benzyl quaternary ammonium compounds, di-fatty di-lower-alkyl quats, di-fatty lower-alkyl benzyl quats, and fatty bis-imidazoline quats. The use of a combination of different quats was found to result in a synergetic performance of the collectors.Type: ApplicationFiled: April 18, 2007Publication date: August 20, 2009Applicant: Akzo Nobel N.V.Inventors: Anders Klingberg, Elisabeth Hendriksson
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Patent number: 7311206Abstract: The present invention relates to a froth flotation process in which silicates are separated from an iron ore in the presence of a collector containing a quaternary ammonium compound having the formula R1R1N+R3R4 1/z Xz? (I), in which the groups R1 independently are hydrocarbon groups, preferably aliphatic groups containing 6-14 carbon atoms and/or the group R2—(OR7)m—OR8—, where the groups R2 independently are acyl groups containing 6-14 carbon atoms, the groups R7 independently are alkylene groups containing 2-4 carbon atoms, the groups R8 independently are alkylene groups containing 2-3 carbon atoms and m is a number from 0-5, R3 and R4 independently are alkyl groups containing 1-4 carbon atoms or groups (R5O)pH, where the groups R5 independently are alkylene groups having 2-4 carbon atoms and p is a number from 1-4, X is an anionic group, and z is the charge of the anion X.Type: GrantFiled: April 16, 2000Date of Patent: December 25, 2007Assignee: Akzo Nobel N.V.Inventors: Magnus Svensson, Jan Olof Gustafsson, Anders Klingberg
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Publication number: 20070071665Abstract: A derivative of aspartic acid is used as a collector for a phosphate containing mineral, such as apatite, in a froth flotation process. According to the invention the collector has a high selectivity for phosphate containing minerals even in the presence of carbonate minerals, such as calcite. The derivative has the formula (1) where RI is a hydrophobic group containing a hydrocarbon group of 6-24 carbon atoms; RII is an alkyl group with 1-7 carbon atoms or a group of the formula (B)yH, in which B is an alkyleneoxy group with 24 carbon atoms and y is a number from 1 to 10; and M is a group selected from the group consisting of a cation or hydrogen. Methods for producing the derivative are also described.Type: ApplicationFiled: November 5, 2004Publication date: March 29, 2007Applicant: AKZO NOBEL N.V.Inventors: Ludwig Eisenhuth, Elisabeth Henriksson, Anders Klingberg
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Patent number: 6076682Abstract: The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by carrying out, at a pH of 8-11, a froth flotation in the presence of a depressing agent for the iron mineral and a collecting agent containing a combination of an ether monoamine and an ether polyamine, which contain an aliphatic hydrocarbon group having 6-22 carbon atoms in a weight ratio of the ether monoamine to the ether polyamine of 1:4-4:1. The invention also discloses a composition which is suitable for use in the process.Type: GrantFiled: November 25, 1998Date of Patent: June 20, 2000Assignee: Akzo Nobel N.V.Inventors: Jan Olof Gustafsson, Anders Klingberg
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Patent number: 5720873Abstract: The invention relates to a method of floating calcium carbonate ore containing silicates as impurities. Floatation is performed in the presence of a quaternary ammonium compound and an alkylene oxide adduct of an amine compound. The silicate being concentrated in the float.Type: GrantFiled: March 1, 1996Date of Patent: February 24, 1998Assignee: Akzo Nobel NVInventors: Anders Klingberg, Lisbeth Olsson
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Patent number: 4828687Abstract: A froth flotation process in which an amphoteric compound is used as a collector for oxide and salt type minerals. The amphoteric compound has the formula ##STR1## in which R is a hydrocarbon group having 4 to 18 carbon atoms; n is 0 or 1;; p is a number from 0 to 5; and R.sub.1 is a hydrocarbon group having 5 to 18 carbon atoms or the group ##STR2## in which R, n and p have the above mentioned meaning; or a salt thereof.Type: GrantFiled: April 3, 1985Date of Patent: May 9, 1989Assignee: Berol Kemi ABInventors: Martin Hellsten, Anders Klingberg
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Patent number: D1007465Type: GrantFiled: October 22, 2020Date of Patent: December 12, 2023Assignee: EPOS Group A/SInventors: Anders Klingberg, Felix Binder