Patents by Inventor Henning Schultz
Henning Schultz 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: 8197645Abstract: The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M?) and mixture (M?); (II) separating the mixture (M?) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water.Type: GrantFiled: December 13, 2006Date of Patent: June 12, 2012Assignees: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Armin Diefenbacher, Hans-Georg Goebbel, Stefan Bitterlich, Hartwig Voss, Henning Schultz, Anna Forlin, Renate Patrascu
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Patent number: 8134018Abstract: The invention relates to a process for the epoxidation of an olefin comprising (a) reacting the olefin with hydrogen peroxide in the presence of methanol as solvent in at least two reaction stages to obtain a mixture (M-a) comprising olefin oxide, unreacted olefin, methanol and water, wherein between at least two reaction stages, olefin oxide is separated by distillation; (b) separating unreacted olefin from the mixture (M-a) by distillation to obtain a mixture (M-bi) comprising at least 80 wt.-% of olefin and a mixture (M-bii) comprising methanol, water and at least 7 wt.-% of olefin oxide; (c) separating olefin oxide from the mixture (M-bii) in at least one distillation stage to obtain a mixture (M-ci) comprising at least 99 wt.-% of olefin oxide and a mixture (M-cii) comprising water and at least 55 wt.-% of methanol; (d) separating methanol from the mixture (M-cii) in at least one distillation stage to obtain a mixture (M-di) comprising at least 85 wt.-% of methanol and up to 10 wt.Type: GrantFiled: January 9, 2006Date of Patent: March 13, 2012Assignees: BASF SE, The Dow Chemical CompanyInventors: Hans-Georg Goebbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Patent number: 7692031Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.Type: GrantFiled: July 6, 2005Date of Patent: April 6, 2010Assignees: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Hans-Georg Goebbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20100081834Abstract: The invention relates to a process for the epoxidation of an olefin comprising (a) reacting the olefin with hydrogen peroxide in the presence of methanol as solvent in at least two reaction stages to obtain a mixture (M-a) comprising olefin oxide, unreacted olefin, methanol and water, wherein between at least two reaction stages, olefin oxide is separated by distillation; (b) separating unreacted olefin from the mixture (M-a) by distillation to obtain a mixture (M-bi) comprising at least 80 wt.-% of olefin and a mixture (M-bii) comprising methanol, water and at least 7 wt.-% of olefin oxide; (c) separating olefin oxide from the mixture (M-bii) in at least one distillation stage to obtain a mixture (M-ci) comprising at least 99 wt.-% of olefin oxide and a mixture (M-cii) comprising water and at least 55 wt.-% of methanol; (d) separating methanol from the mixture (M-cii) in at least one distillation stage to obtain a mixture (M-di) comprising at least 85 wt.-% of methanol and up to 10 wt.Type: ApplicationFiled: January 9, 2006Publication date: April 1, 2010Applicant: BASF Aktiengesellschaft/The Dow Chemical CompanyInventors: Hans-Georg Goebbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20090118523Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.Type: ApplicationFiled: July 6, 2005Publication date: May 7, 2009Applicants: BASF AKITENGESELLSHAFT, THE DOW CHEMICAL COMPANYInventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schultz, Meinolf Weidenbach
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Publication number: 20080289948Abstract: The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M?) and mixture (M?); (II) separating the mixture (M?) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water.Type: ApplicationFiled: December 13, 2006Publication date: November 27, 2008Applicants: BASF SE, THE DOW CHEMICAL COMPANYInventors: Armin Diefenbacher, Hans-Georg Gobbel, Stefan Bitterlich, Hartwig Voss, Henning Schultz, Anna Forlin, Renate Patrascu
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Patent number: 7323579Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.Type: GrantFiled: July 7, 2004Date of Patent: January 29, 2008Assignees: BASF Aktiengesellschaft, The Dow Chemical Company Legal Department Intellectual Property SectionInventors: Hans-Georg Göbbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20070238888Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.Type: ApplicationFiled: July 6, 2005Publication date: October 11, 2007Applicants: BASF AKTIENGESELLSCHAFT, THE DOW CHEMICAL COMPANYInventors: Hans-Georg Goebbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Patent number: 7223876Abstract: The present invention relates to a method of separating an olefin from a gas stream, said gas stream comprising the olefin and at least one other component, said method comprising (i) compressing and cooling the gas stream; (ii) separating the olefin from the gas stream by absorbing the olefin in an absorbent; (iii) separating the olefin from the absorbent by desorption; wherein compressing or cooling or compressing and cooling in (i) is carried out at least twice.Type: GrantFiled: April 21, 2004Date of Patent: May 29, 2007Assignees: BASF Aktiengesellschaft, The Dow Chemical Company, Legal Department, Intellectual Property SectionInventors: Hans-Georg Göbbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20060161010Abstract: The invention relates to a process for the epoxidation of an olefin comprising (a) reacting the olefin with hydrogen peroxide in the presence of methanol as solvent in at least two reaction stages to obtain a mixture (M-a) comprising olefin oxide, unreacted olefin, methanol and water, wherein between at least two reaction stages, olefin oxide is separated by distillation; (b) separating unreacted olefin from the mixture (M-a) by distillation to obtain a mixture (M-bi) comprising at least 80 wt.-% of olefin and a mixture (M-bii) comprising methanol, water and at least 7 wt.-% of olefin oxide; (c) separating olefin oxide from the mixture (M-bii) in at least one distillation stage to obtain a mixture (M-ci) comprising at least 99 wt.-% of oletin oxide and a mixture (M-cii) comprising water and at least 55 wt.-% of methanol; (d) separating methanol from the mixture (M-cii) in at least one distillation stage to obtain a mixture (M-di) comprising at least 85 wt.-% of methanol and up to 10 wt.Type: ApplicationFiled: January 18, 2005Publication date: July 20, 2006Applicants: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20060009648Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.Type: ApplicationFiled: July 7, 2004Publication date: January 12, 2006Applicants: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
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Publication number: 20060006054Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.Type: ApplicationFiled: July 7, 2004Publication date: January 12, 2006Applicants: BASF Aktiengesellshaft, The Dow Chemical CompanyInventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schultz, Meinolf Weidenbach
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Publication number: 20050240038Abstract: The present invention relates to a method of separating an olefin from a gas stream, said gas stream comprising the olefin and at least one other component, said method comprising (i) compressing and cooling the gas stream; (ii) separating the olefin from the gas stream by absorbing the olefin in an absorbent; (iii) separating the olefin from the absorbent by desorption; wherein compressing or cooling or compressing and cooling in (i) is carried out at least twice.Type: ApplicationFiled: April 21, 2004Publication date: October 27, 2005Applicants: BASF Aktiengesellschaft, The Dow Chemical CompanyInventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach