Patents by Inventor Petr Sladek
Petr Sladek 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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Publication number: 20180305280Abstract: A process for producing a reaction mixture comprising a plurality of C3 chlorinated alkane isomers comprising chlorinating a C3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C3 chlorinated alkane isomers, the plurality of C3 chlorinated alkane isomers each having at least one more chlorine atom than the C3 chlorinated alkane starting material, wherein the concentration of the C3 chlorinated alkane starting material is controlled such that conversion of the C3 chlorinated alkane starting material to the plurality of C3 chlorinated alkane isomers, represented by the molar ratio of the C3 chlorinated alkane starting material:C3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.Type: ApplicationFiled: June 21, 2018Publication date: October 25, 2018Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek ONDRUS, Pavel KUBICEK, Petr SLADEK
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Patent number: 10029962Abstract: A process for producing a reaction mixture comprising a plurality of C3 chlorinated alkane isomers comprising chlorinating a C3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C3 chlorinated alkane isomers, the plurality of C3 chlorinated alkane isomers each having at least one more chlorine atom than the C3 chlorinated alkane starting material, wherein the concentration of the C3 chlorinated alkane starting material is controlled such that conversion of the C3 chlorinated alkane starting material to the plurality of C3 chlorinated alkane isomers, represented by the molar ratio of the C3 chlorinated alkane starting material:C3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.Type: GrantFiled: August 16, 2016Date of Patent: July 24, 2018Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek Ondrus, Pavel Kubicek, Petr Sladek
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Publication number: 20180141884Abstract: Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fedType: ApplicationFiled: December 29, 2017Publication date: May 24, 2018Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Karel Filas, Pavel Kubicek, Zdenek Ondrus, Petr Sladek
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Patent number: 9963436Abstract: A process for manufacturing epoxy monomers and/or epoxides in high yields and useful quality and chemical stability by dehydrochlorination of the corresponding chlorohydrins with an alkaline agent, producing the corresponding side product dry salt in a high purity, characterized in that the process comprises the following steps: a. Reaction of the chlorohydrins with the alkaline agent to form corresponding epoxides and the corresponding precipitated chloride salt; b. Dehydration, and optionally completing the reaction, of the reaction mixture of step (a), by use of an azeotropic agent, added to step (b) or generated in situ in step (a), resulting in the producing of a dehydrated reaction mixture; c. Separating the resulting chloride salt by filtration from the dehydrated reaction mixture (b) and d. Isolating the epoxide from the filtered liquid fraction.Type: GrantFiled: February 8, 2017Date of Patent: May 8, 2018Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBUInventors: Pavel Kubicek, Bedrich Nemecek, Petr Sladek
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Publication number: 20180118641Abstract: Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and 1-b) treating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock; 2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and 2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock; 3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and 3-b) treating the reaction mixture obtained in step 3-a) to obType: ApplicationFiled: December 8, 2017Publication date: May 3, 2018Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek Ondrus, Pavel Kubicek, Karel Filas, Petr Sladek
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Patent number: 9896400Abstract: Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed baType: GrantFiled: October 14, 2015Date of Patent: February 20, 2018Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Karel Filas, Pavel Kubicek, Zdenek Ondrus, Petr Sladek
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Publication number: 20180029960Abstract: Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.Type: ApplicationFiled: September 19, 2017Publication date: February 1, 2018Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek ONDRUS, Pavel KUBICEK, Karel FILAS, Petr SLADEK
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Patent number: 9840448Abstract: Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and 1-btreating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock; 2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and 2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock; 3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and 3-b) treating the reaction mixture obtained in step 3-a) to obtaType: GrantFiled: October 15, 2015Date of Patent: December 12, 2017Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek Ondrus, Pavel Kubicek, Karel Filas, Petr Sladek
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Patent number: 9790148Abstract: Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.Type: GrantFiled: October 15, 2015Date of Patent: October 17, 2017Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek Ondrus, Pavel Kubicek, Karel Filas, Petr Sladek
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Publication number: 20170204027Abstract: Disclosed is a process for preparing a chlorinated alkene, comprising contacting a chlorinated alkane with a catalyst in a dehydrochlorination zone to produce a liquid reaction mixture comprising the chlorinated alkane and the chlorinated alkene, and extracting chlorinated alkene from the reaction mixture, wherein the concentration of the chlorinated alkene in the reaction mixture present in the dehydrochlorination zone is controlled such that the molar ratio of chlorinated alkene:chlorinated alkane is from 1:99 to 50:50.Type: ApplicationFiled: March 30, 2017Publication date: July 20, 2017Inventors: Zdenek ONDRUS, Pavel Kubicek, Karel Filas, Petr Sladek
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Publication number: 20170166544Abstract: A process for manufacturing epoxy monomers and/or epoxides in high yields and useful quality and chemical stability by dehydrochlorination of the corresponding chlorohydrins with an alkaline agent, producing the corresponding side product dry salt in a high purity, characterized in that the process comprises the following steps: a. Reaction of the chlorohydrins with the alkaline agent to form corresponding epoxides and the corresponding precipitated chloride salt; b. Dehydration, and optionally completing the reaction, of the reaction mixture of step (a), by use of an azeotropic agent, added to step (b) or generated in situ in step (a), resulting in the producing of a dehydrated reaction mixture; c. Separating the resulting chloride salt by filtration from the dehydrated reaction mixture (b) and d. Isolating the epoxide from the filtered liquid fraction.Type: ApplicationFiled: February 8, 2017Publication date: June 15, 2017Inventors: Pavel KUBICEK, Bedrich NEMECEK, Petr SLADEK
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Patent number: 9624149Abstract: Disclosed is a process for preparing a chlorinated alkene, comprising contacting a chlorinated alkane with a catalyst in a dehydrochlorination zone to produce a liquid reaction mixture comprising the chlorinated alkane and the chlorinated alkene, and extracting chlorinated alkene from the reaction mixture, wherein the concentration of the chlorinated alkene in the reaction mixture present in the dehydrochlorination zone is controlled such that the molar ratio of chlorinated alkene:chlorinated alkane is from 1:99 to 50:50.Type: GrantFiled: October 15, 2015Date of Patent: April 18, 2017Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek Ondrus, Pavel Kubicek, Karel Filas, Petr Sladek
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Publication number: 20170050904Abstract: A process for producing a reaction mixture comprising a plurality of C3 chlorinated alkane isomers comprising chlorinating a C3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C3 chlorinated alkane isomers, the plurality of C3 chlorinated alkane isomers each having at least one more chlorine atom than the C3 chlorinated alkane starting material, wherein the concentration of the C3 chlorinated alkane starting material is controlled such that conversion of the C3 chlorinated alkane starting material to the plurality of C3 chlorinated alkane isomers, represented by the molar ratio of the C3 chlorinated alkane starting material:C3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.Type: ApplicationFiled: August 16, 2016Publication date: February 23, 2017Inventors: ZDENEK ONDRUS, PAVEL KUBICEK, PETR SLADEK
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Patent number: 9573917Abstract: A process for manufacturing epoxy monomers and/or epoxides in high yields and useful quality and chemical stability by dehydrochlorination of the corresponding chlorohydrins with an alkaline agent, producing the corresponding side product dry salt in a high purity, characterized in that the process comprises the following steps: a. Reaction of the chlorohydrins with the alkaline agent to form corresponding epoxides and the corresponding precipitated chloride salt; b. Dehydration, and optionally completing the reaction, of the reaction mixture of step (a), by use of an azeotropic agent, added to step (b) or generated in situ in step (a), resulting in the producing of a dehydrated reaction mixture; c. Separating the resulting chloride salt by filtration from the dehydrated reaction mixture (b) and d. Isolating the epoxide from the filtered liquid fraction.Type: GrantFiled: June 9, 2014Date of Patent: February 21, 2017Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Pavel Kubicek, Bedrich Nemecek, Petr Sladek
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Publication number: 20160122310Abstract: A process for manufacturing epoxy monomers and/or epoxides in high yields and useful quality and chemical stability by dehydrochlorination of the corresponding chlorohydrins with an alkaline agent, producing the corresponding side product dry salt in a high purity, characterized in that the process comprises the following steps: a. Reaction of the chlorohydrins with the alkaline agent to form corresponding epoxides and the corresponding precipitated chloride salt; b. Dehydration, and optionally completing the reaction, of the reaction mixture of step (a), by use of an azeotropic agent, added to step (b) or generated in situ in step (a), resulting in the producing of a dehydrated reaction mixture; c. Separating the resulting chloride salt by filtration from the dehydrated reaction mixture (b) and d. Isolating the epoxide from the filtered liquid fraction.Type: ApplicationFiled: June 9, 2014Publication date: May 5, 2016Inventors: Pavel KUBICEK, Bedrich MEMECEK, Petr SLADEK
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Publication number: 20160107955Abstract: Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed baType: ApplicationFiled: October 14, 2015Publication date: April 21, 2016Inventors: Karel FILAS, Pavel KUBICEK, Zdenek ONDRUS, Petr SLADEK
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Publication number: 20160107958Abstract: Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.Type: ApplicationFiled: October 15, 2015Publication date: April 21, 2016Inventors: Zdenek ONDRUS, Pavel KUBICEK, Karel FILAS, Petr SLADEK
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Publication number: 20160107956Abstract: Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and 1-b) treating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock; 2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and 2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock; 3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and 3-b) treating the reaction mixture obtained in step 3-a) to obType: ApplicationFiled: October 15, 2015Publication date: April 21, 2016Inventors: Zdenek ONDRUS, Pavel KUBICEK, Karel FILAS, Petr SLADEK
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Publication number: 20160107960Abstract: Disclosed is a process for preparing a chlorinated alkene, comprising contacting a chlorinated alkane with a catalyst in a dehydrochlorination zone to produce a liquid reaction mixture comprising the chlorinated alkane and the chlorinated alkene, and extracting chlorinated alkene from the reaction mixture, wherein the concentration of the chlorinated alkene in the reaction mixture present in the dehydrochlorination zone is controlled such that the molar ratio of chlorinated alkene:chlorinated alkane is from 1:99 to 50:50.Type: ApplicationFiled: October 15, 2015Publication date: April 21, 2016Inventors: Zdenek ONDRUS, Pavel KUBICEK, Karel FILAS, Petr SLADEK
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Publication number: 20090082601Abstract: A method of highly selective catalytic hydrochlorination of glycerine and/or monochloropropanediols to the dichloropropanol products 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol, carried out in at least one continuous reaction zone at reaction temperatures in the range of 70-140° C. and with continuous removing of the water of reaction, the liquid feed containing at least 50% by weight of glycerine and/or monochloropropanediols. The method can be carried out in a continuously operating one-step circulation reactor or a cascade of continuous flow reactors of the liquid-gas type.Type: ApplicationFiled: December 3, 2008Publication date: March 26, 2009Applicant: Spolek pro chemickou a hutni vyrobu, akciovaInventors: Pavel Kubicek, Petr Sladek, Ivana Buricova