Patents by Inventor Hanswilhelm Bach
Hanswilhelm Bach 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: 5683585Abstract: Wastewaters resulting from preparation or use of paints comprising organic solvents are purified by extraction with higher monoalcohols, i.e. alcohols having at least 8 carbon atoms in the molecule.Type: GrantFiled: April 12, 1996Date of Patent: November 4, 1997Assignee: Hoechst AktiengesellschaftInventors: Hanswilhelm Bach, Helmut Bahrmann, Jurgen Weber
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Patent number: 5266729Abstract: A process for the preparation of tricyclo[5.2.1.0.sup.2,6 ]decan-8(9)-one by the conversion of 8(9)-hydroxytricyclo[5.2.1.0.sup.2,6 ]dec-3-ene by means of a supported catalyst containing nickel and magnesium oxide at elevated temperature and, if necessary, at elevated pressure.Type: GrantFiled: August 18, 1992Date of Patent: November 30, 1993Assignee: Hoechst AktiengesellschaftInventors: Hanswilhelm Bach, Werner Kohl, Gregor Deckers, Detlef Kampmann, Claus Kniep
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Patent number: 5124485Abstract: A method of preparation of a cobalt catalyst particularly adapted for hydrogenation of nitriles, the catalyst which is the product of the method, and the method of use thereof.Type: GrantFiled: July 26, 1990Date of Patent: June 23, 1992Assignee: Hoechst AktiengesellschaftInventors: Jurgen Weber, Volker Falk, Gerhardt Horn, Hanswilhelm Bach, Klaus Mathieu, Claus Kniep
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Patent number: 5091350Abstract: A process for separating rhodium from mixtures thereof, comprising extracting said rhodium with an aqueous solution of a rhodium complexing agent and a solubilizer. A process for preparing aldehydes in the presence of both the complexing agent and the solubilizer is also set forth. The solubilizer is generally selected from salts of carboxylic acids having 8-20 carbon atoms, alkyl sulfonates, alkyl aryl sulfonates, amines and quaternary ammonium compounds of Formula II ##STR1## wherein A is alkyl, alkoxy, hydroxyalkyl, aryl having 6-25 carbon atoms, or R.sup.7 CONHCH.sub.2 CH.sub.2 CH.sub.2 --wherein R.sup.7 is alkyl having 5-11 carbon atoms; B is an alkyl having 1-25 carbon atoms, an aryl having 6-25 carbon atoms, or an .omega.-hydroxy alkyl having 1-4 carbon atoms; C and D are each independently an alkyl or .omega.Type: GrantFiled: October 29, 1990Date of Patent: February 25, 1992Assignee: Hoechst AktiengesellschaftInventors: Boy Cornils, Werner Konkol, Helmut Bahrmann, Hanswilhelm Bach, Ernest Wiebus, Wolfgang Lipps
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Patent number: 5041228Abstract: Mixtures of substances containing metal complex compounds, organoelemental ligands, and/or other components are separated according to the invention by chromatography on stationary supports in an aqueous or aqueous/organic medium.Type: GrantFiled: June 28, 1989Date of Patent: August 20, 1991Assignee: Hoechst AktiengesellschaftInventors: W. A. Herrmann, Jurgen Kulpe, Werner Konkol, Hanswilhelm Bach, Wilhelm Gick, Ernst Wiebus, Thomas Muller, Helmut Bahrmann
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Patent number: 5041675Abstract: This invention relates to a process for preparing 3(4),8(9)-bis(aminomethyl)tricyclo[5.2.1.0.sup.2,6 ]decane. The starting material for the synthesis of this compound is dicyclopentadiene, which is hydroformylated in the presence of a rhodium compound and subjected to reductive amination without the hydroformylation catalyst being separated from the reaction mixture.Type: GrantFiled: August 17, 1990Date of Patent: August 20, 1991Assignee: Hoechst AktiengesellschaftInventors: Rainer Lukas, Klaus Mathieu, Franz Thonnessen, Georg Dambkes, Hanswilhelm Bach
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Patent number: 5008473Abstract: A process for the purification of propanediol-1,3, especially when produced by hydration of acrolein with water, including extracting the diol with cyclohexane. Preferably, from 2 to 10 parts by weight of cyclohexane per part by weight of diol is used. The purification is usually carried out below 60.degree. C.Type: GrantFiled: September 17, 1987Date of Patent: April 16, 1991Assignee: Ruhrchemie AktiengesellschaftInventors: Norbert Breitkopf, Georg Dambkes, Hanswilhelm Bach
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Patent number: 4879418Abstract: A process for the preparation of aldehydes including reacting olefins with carbon monoxide and hydrogen in an aqueous liquid phase in the presence of a rhodium catalyst and a specific class of water soluble aryl phosphines. These phosphines are preferably mixtures of alkali metal salts and quaternary ammonium salts of sulfonated aryl phosphines.Type: GrantFiled: August 1, 1988Date of Patent: November 7, 1989Assignee: Hoechst AktiengesellschaftInventors: Hanswilhelm Bach, Helmut Bahrmann, Boy Cornils, Wilhelm Gick, Volker Heim, Werner Konkol, Ernst Wiebus
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Patent number: 4808758Abstract: In a hydroformylation process for the preparation of aldehydes by reacting aliphatic olefins of 2 to 12 carbon atoms with carbon monoxide and hydrogen at temperatures of 20.degree. to 150.degree. C. and pressures of 0.1 to 20 mPa in the liquid phase and in the presence of an aqueous solution of a catalyst containing originally 50 to 800 wt. ppm of rhodium and 25 to 30 wt. % of complex-forming, sulfonated or carboxylated triarylphosphines, in each case based on the aqueous solution, the improvement comprising adding fresh phosphine solution to maintain the original phosphine concentration, until the total concentration of complex-forming phosphines and secondary and degradation products of the phosphines not capable of forming complexes amounts to about 35 to 45 wt. % based on the aqueous solution to selectively form n-aldehydes.Type: GrantFiled: November 25, 1987Date of Patent: February 28, 1989Assignee: Ruhrchemie AktiengesellschaftInventors: Hanswilhelm Bach, Boy Cornils, Wilhelm Gick, Heinz-Dieter Hahn, Werner Konkol, Ernst Wiebus
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Patent number: 4808757Abstract: A process for the preparation of aldehydes by hydroformylation of olefins in the presence of an aqueous solution containing rhodium as a catalyst. The aqueous solution preferably contains rhodium in a concentration of 450 to 800 weight-ppm and sulfonated or carboxylated triarylphosphines as complex ligands in a concentration of 25 to 30% by weight, both based on the aqueous solution.Type: GrantFiled: May 13, 1988Date of Patent: February 28, 1989Assignee: Ruhrchemie AktiengesellschaftInventors: Boy Cornils, Werner Konkol, Hanswilhelm Bach, Wilhelm Gick, Ernst Wiebus, Helmut Bahrmann, Heinz-Dieter Hahn
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Patent number: 4801754Abstract: In a hydroformylation process for the preparation of aldehydes by reacting aliphatic olefins of 2 to 12 carbon atoms with carbon monoxide and hydrogen at temperatures of 20.degree. to 150.degree. C. and pressures of 0.1 to 20 mPa in the liquid phase and in the presence of an aqueous solution containing 50 to 800 wt. ppm of rhodium and 25 to 30 wt. % of phosphines, in each case based on the aqueous solution as a catalyst system and in addition the transformation products of the phosphines, the improvement comprising draining off a portion of the aqueous solution of the catalyst system together with the reaction product and replacing the same by fresh aqueous solution of the catalyst system whereby the original catalyst selectivity for formation of n-aldehydes is maintained.Type: GrantFiled: November 25, 1987Date of Patent: January 31, 1989Assignee: Ruhrchemie AktiengesellschaftInventors: Hanswilhelm Bach, Boy Cornils, Wilhelm Gick, Gehard Diekhaus, Werner Konkol, Ernest Wiebus
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Patent number: 4795727Abstract: A process for the preparation of a rhodium catalyst comprising dissolving a carboxylic acid salt of rhodium in a solvent taken from the class consisting of aliphatic, cycloaliphatic, aromatic hydrocarbons and mixtures thereof. The carboxylic acid has 2 to 18 carbon atoms. This salt is reacted with carbon monoxide and hydrogen to form a rhodium hydridrocarbonyl which is reacted with an aqueous solution of a triaryl phosphine. The aqueous solution may be present during the initial reaction of the rhodium salt or may be added thereafter. A catalyst which is the product of the foregoing process is also disclosed, as is a method of producing aldehydes using the catalyst.Type: GrantFiled: May 8, 1987Date of Patent: January 3, 1989Assignee: Ruhrchemie AktiengesellschaftInventors: Hanswilhelm Bach, Helmut Bahrmann, Boy Cornils, Werner Konkol, Ernst Wiebus
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Patent number: 4740626Abstract: The present invention relates to a process for the preparation of aldehydes by the reaction of olefinic compounds with hydrogen and carbon monoxide in the presence of a catalyst system containing rhodium and aromatic phosphines. The aromatic phosphines are soluble in organic media and represent salts of sulfonated or carboxylated triarylphosphines which are insoluble in water. After hydroformylation, the reaction product is treated with a diluted aqueous solution of a base and the aqueous phase containing rhodium and aromatic phosphines is separated. Thus, thermal loading of the catalyst, for example by the redistillation of the reaction product, is avoided.Type: GrantFiled: September 12, 1986Date of Patent: April 26, 1988Assignee: Ruhrchemie AktiengesellschaftInventors: Helmut Bahrmann, Werner Konkol, Jugen Weber, Hanswilhelm Bach, Ludger Bexten
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Patent number: 4731485Abstract: A process for separating rhodium from mixtures thereof, comprising extracting said rhodium with an aqueous solution of a rhodium complexing agent and a solubilizer. A process for preparing aldehydes in the presence of both the complexing agent and the solubilizer is also set forth. The solubilizer is generally selected from salts of carboxylic acids having 8-20 carbon atoms, alkyl sulfonates, alkyl aryl sulfonates, amines and quaternary ammonium compounds of Formula II ##STR1## wherein A is alkyl, alkoxy, hydroxyalkyl, aryl having 6-25 carbon atoms, or R.sup.7 CONHCH.sub.2 CH.sub.2 CH.sub.2 --wherein R.sup.7 is alkyl having 5-11 carbon atoms; B is an alkyl having 1-25 carbon atoms, an aryl having 6-25 carbon atoms, or an .omega.-hydroxy alkyl having 1-4 carbon atoms; C and D are each independently an alkyl or .omega.Type: GrantFiled: February 2, 1987Date of Patent: March 15, 1988Assignee: Ruhrchemie AktiengesellschaftInventors: Boy Cornils, Werner Konkol, Helmut Bahrmann, Hanswilhelm Bach, Ernest Wiebus, Wolfgang Lipps
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Patent number: 4723047Abstract: The present invention relates to a process for the preparation of nonadecanediols by the hydroformylation of oleyl alcohol. Rhodium and salts of sulfonated or carboxylated triarylphosphines, which are soluble in organic media and insoluble in water, are used as hydroformylation catalysts. The hydroformylation product is then treated with a diluted solution of a base dissolved in water, the aqueous phase separated and the hydroformylation product treated with hydrogen at elevated temperature in the presence of a hydrogenation catalyst.Type: GrantFiled: September 23, 1986Date of Patent: February 2, 1988Assignee: Ruhrchemie AktiengesellschaftInventors: Helmut Bahrmann, Boy Cornils, Werner Konkol, Jurgen Weber, Ludger Bexten, Hanswilhelm Bach
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Patent number: 4711648Abstract: A process for the purification of a gas containing one or more of hydrogen sulfide, hydrogen cyanide, and carbonyl sulfide as impurities comprising contacting the gas with at least one aliphatic aldehyde which is liquid under the purification conditions. The gas is inert to the aldehyde under such conditions. The process is useful in the purification of synthesis gas for use in reactions wherein sensitive catalysts are employed.Type: GrantFiled: September 11, 1986Date of Patent: December 8, 1987Assignee: Ruhrechemie AktiengesellschaftInventors: Werner Konkol, Helmut Bahrmann, Georg Dambkes, Wilhelm Gick, Ernst Wiebus, Hanswilhelm Bach
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Patent number: 4684750Abstract: A process for the production of 2-ethyl-hexanol comprising reacting propene with carbon monoxide and hydrogen, in the presence of an aqueous catalyst containing rhodium and at least one sulfonated triarylphosphine, to form an aqueous phase and an organic phase, said organic phase comprising a mixture of materials having boiling points lower than that of n-butanal and substances having boiling points equal to or higher than that of n-butanal, said materials including i-butanal, separating said material from said substances, subjecting said substances to aldol condensation, in the presence of aqueous alkali, to form 2-ethyl hexenal, first hydrogenating said 2-ethyl-hexenal in a gas phase in the presence of a first hydrogenation catalyst and thereafter hydrogenating said 2-ethyl-hexenal in a liquid phase to form 2-ethyl-hexanol in the presence of a second hydrogenation catalyst.Type: GrantFiled: August 26, 1986Date of Patent: August 4, 1987Assignee: Ruhrchemie AktiengesellschaftInventors: Gunther Kessen, Boy Cornils, Wilhelm Gick, Ernst Wiebus, Joseph Hibbel, Hanswilhelm Bach, Wolfgang Zgorzelski
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Patent number: 4593126Abstract: A process for the hydroformylation of aldehydes comprising reacting aliphatic olefins with carbon monoxide and hydrogen in a liquid phase in the presence of water, a rhodium catalyst and a water soluble salt of a sulfonated or carboxylated triarylphosphine, the reaction taking place in the presence of an aqueous phase having a pH of about 5.5 to about 6.2.Type: GrantFiled: April 4, 1985Date of Patent: June 3, 1986Assignee: Ruhrchemie AktiengesellschaftInventors: Boy Cornils, Werner Konkol, Hanswilhelm Bach, Georg Dambkes, Wilhelm Gick, Wolfgang Greb, Ernst Wiebus, Helmut Bahrmann
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Patent number: 4533755Abstract: A process for the hydroformylation of olefins having 2 to 5 carbon atoms using rhodium catalysts in a low pressure process, wherein the waste gas from the low pressure plant containing the olefin is compressed and used in a high pressure plant.Type: GrantFiled: December 7, 1983Date of Patent: August 6, 1985Assignee: Ruhrchemie AktiengesellschaftInventors: Boy Cornils, Josef Hibbel, Gunther Kessen, Werner Konkol, Bernhard Lieder, Ernst Wiebus, Heinz Kalbfell, Hanswilhelm Bach
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Patent number: 4435603Abstract: A polyol composition comprising a solid polyol which is crystalline under normal conditions and, as an anti-caking agent therefor, a tertiary amine containing at least two identical organic substituents, each having two to twenty carbon atoms. A method of preventing caking of polyols is disclosed wherein to such polyols there is added at least one of such tertiary amines, preferably in a concentration of 0.05 to 0.25 percent by weight based on the weight of the polyol.Type: GrantFiled: March 11, 1981Date of Patent: March 6, 1984Assignee: Ruhrchemie AktiengesellschaftInventors: Boy Cornils, Hanswilhelm Bach, Roderich Gartner, Wilhelm Gick