Patents by Inventor Achim Stankowiak
Achim Stankowiak 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: 9539521Abstract: The present invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, in which (1) the used aircraft de-icing agent, which is possibly contaminated with runway de-icing agents, is collected in a suitable device, (2) the used aircraft de-icing agent collected in this manner is subsequently brought to a glycol content of between 50 and 75% by weight without or after only course prior separation of solid or suspended impurities by expelling water (3) and the concentrate obtained in this manner is separated into a water/glycol mixture and residue by means of a thin-film evaporator, and (4) the water/glycol mixture is collected.Type: GrantFiled: May 23, 2014Date of Patent: January 10, 2017Assignee: CLARIANT INTERNATIONAL LTD.Inventor: Achim Stankowiak
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Publication number: 20160129366Abstract: The present invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, in which (1) the used aircraft de-icing agent, which is possibly contaminated with runway de-icing agents, is collected in a suitable device, (2) the used aircraft de-icing agent collected in this manner is subsequently brought to a glycol content of between 50 and 75% by weight without or after only course prior separation of solid or suspended impurities by expelling water (3) and the concentrate obtained in this manner is separated into a water/glycol mixture and residue by means of a thin-film evaporator, and (4) the water/glycol mixture is collected.Type: ApplicationFiled: May 23, 2014Publication date: May 12, 2016Applicant: Clariant International Ltd.Inventor: Achim STANKOWIAK
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Patent number: 8865016Abstract: Biodegradable, frost proof heat-transfer fluid, use thereof in near-surface geothermal installations, and a concentrate: subject matter of the present invention is the use of a triazole-free composition which as well as water comprises a) 9.2% to 49.5% by weight of at least one C2 to C3 alkylene glycol, C2 to C3 polyalkylene glycol or glycerol, b) 0.1% to 4% by weight of at least one corrosion inhibitor, with the provisos that c) the composition is readily degradable biologically in accordance with test method OECD 301 A, d) the composition has an anaerobic biodegradability of at least 75% in accordance with test method OECD 311, e) the corrosion inhibitor or all corrosion inhibitors used are readily degradable biologically in accordance with OECD 301 A (for water-soluble corrosion inhibitors) or OECD 301 B (for corrosion inhibitors of low water-solubility), in near-surface geothermal installations as a heat-transfer fluid.Type: GrantFiled: February 18, 2011Date of Patent: October 21, 2014Assignee: Clariant Finance (BVI) LimitedInventors: Michael Waidelich, Achim Stankowiak, Johann Schuster, Martina Unterhaslberger, Sabine Dronia
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Patent number: 8350080Abstract: A method is described for producing acyl glycinate salts of formula (II) in which R1 represents a saturated linear or branched alkyl radical comprising 1 to 21 carbon atoms or a monounsaturated or polyunsaturated linear or branched alkenyl radical comprising 2 to 21 carbon atoms, and B represents a cation, and/or the corresponding protonated acyl glycinic acid. Said method is characterized in that one or more fatty acid monoethanol amides of formula (I) in which R1 has the meaning indicated above is/are oxidized with oxygen in the presence of an optionally supported bimetallic catalyst consisting of gold and a metal from group VIII of the periodic table in the alkaline medium in order to obtain one or more acyl glycinate salts of formula (II). In order to produce the protonated acyl glycinic acids, the acyl glycinate salt/s of formula (II) is/are additionally reacted with an acid.Type: GrantFiled: January 7, 2009Date of Patent: January 8, 2013Assignee: Clariant Finance (BVI) LimitedInventors: Peter Klug, Achim Stankowiak, Oliver Franke, Franz-Xaver Scherl, Ulf Pruesse, Nadine Decker, Klaus-Dieter Vorlop
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Publication number: 20120319032Abstract: Biodegradable, frost proof heat-transfer fluid, use thereof in near-surface geothermal installations, and a concentrate: subject matter of the present invention is the use of a triazole-free composition which as well as water comprises a) 9.2% to 49.5% by weight of at least one C2 to C3 alkylene glycol, C2 to C3 polyalkylene glycol or glycerol, b) 0.1% to 4% by weight of at least one corrosion inhibitor, with the provisos that c) the composition is readily degradable biologically in accordance with test method OECD 301 A, d) the composition has an anaerobic biodegradability of at least 75% in accordance with test method OECD 311, e) the corrosion inhibitor or all corrosion inhibitors used are readily degradable biologically in accordance with OECD 301 A (for water-soluble corrosion inhibitors) or OECD 301 B (for corrosion inhibitors of low water-solubility), in near-surface geothermal installations as a heat-transfer fluid.Type: ApplicationFiled: February 18, 2011Publication date: December 20, 2012Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Michael Waidelich, Achim Stankowiak, Johann Schuster, Martina Unterhaslberger, Sabine Dronia
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Patent number: 8093414Abstract: A process is described for preparing acylglycinate salts of the formula (II) in which R1 is a saturated linear or branched alkyl radical having from 1 to 21 carbon atoms or a mono- or polyunsaturated linear or branched alkenyl radical having from 2 to 21 carbon atoms, and B is a cation derived from a base, and/or the corresponding protonated acylglycines, characterized in that one or more fatty acid monoethanolamides of the formula (I) in which R1 is as defined above is oxidized with oxygen in the presence of a transition group metal catalyst in an alkaline medium to give one or more acylglycinate salts of the formula (II), and, in the case of preparation of the protonated acylglycines, the acylglycinate salt(s) of the formula (II) is additionally reacted with an acid.Type: GrantFiled: August 13, 2007Date of Patent: January 10, 2012Assignee: Clariant Finance (BVI) LimitedInventors: Peter Klug, Achim Stankowiak, Oliver Franke, Franz-Xaver Scherl, Ulf Pruesse, Nadine Decker, Klaus-Dieter Vorlop
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Publication number: 20110263909Abstract: The invention relates to a method for reprocessing aircraft de-icing agents comprising glycol, wherein (1) the used aircraft de-icing agents are collected in a suitable device, (2) the used aircraft de-icing agent is subsequently brought to a propylene glycol content of between 55 and 75% by weight without prior separating of solid or suspended impurities by expelling water at increased temperature, (3) the concentrated used aircraft de-icing agent thus obtained is transported to a central reprocessing system, where the same is subjected to a fine distillation, and wherein (4) propylene glycol is produced as a distillate of the fine distillation.Type: ApplicationFiled: December 2, 2009Publication date: October 27, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Achim Stankowiak, Ingo Jeschke, Thomas Bergstroem
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Method For The Production Of Aryl Polyglycol Carboxylic Acids By Means Of A Direct Oxidation Process
Publication number: 20110144385Abstract: The invention relates to a method for producing compounds of formula (I) in which R1 represents an aromatic group containing 6 to 200 carbon atoms, R2 represents hydrogen, a linear or branched alkyl group containing 1 to 22 carbon atoms, a monounsaturated or polyunsaturated linear or branched alkenyl group containing 2 to 22 carbon atoms, or an aryl group containing 6 to 12 carbon atoms, X represents an alkylene group containing 2 to 4 carbon atoms, n represents a number between 0 and 100, and B represents a cation or hydrogen, and/or the corresponding protonated carboxylic acids, by oxidizing one or more compounds of formula (II) in which R1, R2, X, and n have the meaning indicated above, with oxygen or oxygen-containing gases in the presence of a gold-containing catalyst and at least one alkaline compound.Type: ApplicationFiled: July 15, 2009Publication date: June 16, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Oliver Franke, Achim Stankowiak, Rainer Kupfer, Ulf Pruesse, Nadine Decker, Klaus-Dieter Vorlop -
Publication number: 20110071323Abstract: The invention relates to a method for producing 1,2-propanediol, in that a liquid phase comprising at least 95 wt.-% glycerin is reacted with hydrogen in the presence of a copper-containing, powdered catalyst in a continuously operated stirred reactor at a pressure of 50 to 90 bar, wherein the stationary yield of the reaction is at least 60%.Type: ApplicationFiled: May 27, 2009Publication date: March 24, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Achim Stankowiak, Oliver Franke, Joerg Appel, Dirk Buehring, Olaf Wachsen
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Patent number: 7868212Abstract: The invention relates to a method for preparing 1,2-propanediol by reacting glycerol, which has a purity of at least 95 wt %, with hydrogen at a hydrogen pressure from 20 to 100 bar and a temperature from 180 to 240° C. in the presence of a catalyst, which comprises 20 to 60 wt % of copper oxide, 30 to 70 wt % of zinc oxide and 1 to 10 wt % manganese oxide in an autoclave.Type: GrantFiled: January 15, 2008Date of Patent: January 11, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Achim Stankowiak, Oliver Franke
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Publication number: 20100305358Abstract: A method is described for producing acyl glycinate salts of formula (II) in which R1 represents a saturated linear or branched alkyl radical comprising 1 to 21 carbon atoms or a monounsaturated or polyunsaturated linear or branched alkenyl radical comprising 2 to 21 carbon atoms, and B represents a cation, and/or the corresponding protonated acyl glycinic acid. Said method is characterized in that one or more fatty acid monoethanol amides of formula (I) in which R1 has the meaning indicated above is/are oxidized with oxygen in the presence of an optionally supported bimetallic catalyst consisting of gold and a metal from group VIII of the periodic table in the alkaline medium in order to obtain one or more acyl glycinate salts of formula (II). In order to produce the protonated acyl glycinic acids, the acyl glycinate salt/s of formula (II) is/are additionally reacted with an acid.Type: ApplicationFiled: January 7, 2009Publication date: December 2, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Peter Klug, Achim Stankowiak, Oliver Franke, Franz-Xaver Scherl, Ulf Pruesse, Nadine Decker, Klaus-Dieter Vorlop
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Publication number: 20100286418Abstract: A process is described for preparing acylglycinate salts of the formula (II) in which R1 is a saturated linear or branched alkyl radical having from 1 to 21 carbon atoms or a mono- or polyunsaturated linear or branched alkenyl radical having from 2 to 21 carbon atoms, and B is a cation derived from a base, and/or the corresponding protonated acylglycines, characterized in that one or more fatty acid monoethanolamides of the formula (I) in which R1 is as defined above is oxidized with oxygen in the presence of a transition group metal catalyst in an alkaline medium to give one or more acylglycinate salts of the formula (II), and, in the case of preparation of the protonated acylglycines, the acylglycinate salt(s) of the formula (II) is additionally reacted with an acid.Type: ApplicationFiled: August 13, 2007Publication date: November 11, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Peter Klug, Achim Stankowiak, Oliver Franke, Franz-Xaver Scherl, Ulf Pruesse, Nadine Thielecke, Klaus-Dieter Vorlop
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Patent number: 7812200Abstract: The invention provides a process for preparing 1,2-propanediol, by reacting glycerol which has a purity of at least 95% by weight with hydrogen at a hydrogen pressure of from 20 to 100 bar and a temperature of from 180 to 240 DEG C. in the presence of a catalyst which comprises from 10 to 50% by weight of copper oxide and from 50 to 90% by weight of zinc oxide in an autoclave.Type: GrantFiled: June 16, 2007Date of Patent: October 12, 2010Assignee: Clariant Finance (BVI) LimitedInventors: Oliver Franke, Achim Stankowiak
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Publication number: 20100094064Abstract: The invention relates to a method for preparing 1,2-propanediol by reacting glycerol, which has a purity of at least 95 wt %, with hydrogen at a hydrogen pressure from 20 to 100 bar and a temperature from 180 to 240° C. in the presence of a catalyst, which comprises 20 to 60 wt % of copper oxide, 30 to 70 wt % of zinc oxide and 1 to 10 wt % manganese oxide in an autoclave.Type: ApplicationFiled: January 15, 2008Publication date: April 15, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Achim Stankowiak, Oliver Franke
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Publication number: 20100056735Abstract: The invention relates to a method for producing alkyl polyglycol carboxylic acids and polyglycol dicarboxylic acids by means of direct oxidation.Type: ApplicationFiled: April 7, 2008Publication date: March 4, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Achim Stankowiak, Oliver Franke, Ulf Pruesse, Nadine Decker, Klaus-Dieter Vorlop
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Publication number: 20100036175Abstract: The invention provides a process for preparing 1,2-propanediol, by reacting glycerol which has a purity of at least 95% by weight with hydrogen at a hydrogen pressure of from 20 to 100 bar and a temperature of from 180 to 240 DEG C. in the presence of a catalyst which comprises from 10 to 50% by weight of copper oxide and from 50 to 90% by weight of zinc oxide in an autoclave.Type: ApplicationFiled: June 16, 2007Publication date: February 11, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Oliver Franke, Achim Stankowiak
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Patent number: 7404911Abstract: The present invention relates to heat-transfer concentrates for solar installations, containing a) from 92 to 99% by weight of at least one polyglycol of the formula R—O—(CH2—CH2—O)n—H, in which n is an integer of from 3 to 500 and R is H, a C1- to C4-alkyl group or an aromatic radical having 6 to 12 carbon atoms, b) from 1 to 8% by weight of at least one corrosion inhibitor, with the proviso that its content of ethylene glycol and 1,2-propylene glycol is less than 0.2% by weight.Type: GrantFiled: February 2, 2007Date of Patent: July 29, 2008Assignee: Clariant International Ltd.Inventors: Markus Hafner, Achim Stankowiak, Johann Schuster, Stefan Mauerberger
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Patent number: 7387768Abstract: The invention relates to the use of an absorption liquid for purifying gases from gaseous acidic contaminants, the absorption liquid comprising A) 0.1 to 100% by weight of one or more amines of the formula I where R1 is H, C1-C6-alkyl, an aromatic radical having 6 to 18 carbon atoms or a radical of the formula 2 R2 is H, C1-C6-alkyl, an aromatic radical having 6 to 18 carbon atoms or a radical of the formula 3 R3 is C1-C6-alkyl or an aromatic radical having 6 to 18 carbon atoms R4 is H or CH3 R5 is H or CH3 x is a number from 0 to 3 y is a number from 0 to 3 z is an integer between 1 and 30, and also, if appropriate, B) 0 to 99.9% by weight of water, and/or C) 0 to 99.9% by weight of any desired solvent.Type: GrantFiled: September 1, 2005Date of Patent: June 17, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Horst Streitberger, Oliver Pfueller, Achim Stankowiak, Alexander Snell, Norbert Mollekopf, Hans-Dieter Mueller
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Publication number: 20070213568Abstract: The invention provides a process for preparing alkylene glycol diethers of the formula (I) by converting compounds of the formula (II) in which R1 is hydrogen or C1— to C3-alkyl, R2 is hydrogen, CH3 or CH2—CH3 and n is from 5 to 500 in the liquid phase at temperatures between 170 and 300° C. in the presence of a Raney nickel catalyst which, based on the total weight of the catalyst, contains from 0.1 to 10% by weight of one or more other metals selected from transition groups I, VI and VII of the Periodic Table of the Elements.Type: ApplicationFiled: March 9, 2007Publication date: September 13, 2007Inventors: Achim Stankowiak, Alexander Snell
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Publication number: 20070181849Abstract: The present invention relates to heat-transfer concentrates for solar installations, containing a) from 92 to 99% by weight of at least one polyglycol of the formula R—O—(CH2—CH2—O)n—H, in which n is an integer of from 3 to 500 and R is H, a C1- to C4-alkyl group or an aromatic radical having 6 to 12 carbon atoms, b) from 1 to 8% by weight of at least one corrosion inhibitor, with the proviso that its content of ethylene glycol and 1,2-propylene glycol is less than 0.2% by weight.Type: ApplicationFiled: February 2, 2007Publication date: August 9, 2007Inventors: Markus Hafner, Achim Stankowiak, Johann Schuster, Stefan Mauerberger