Patents Assigned to SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
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Publication number: 20190185395Abstract: A process for producing a chlorinated alkane in which an alkene or an alkane feedstock is contacted with chlorine in a chlorination zone to produce a reaction mixture containing the chlorinated alkane, wherein the chlorine supplied into the chlorination zone has an oxygen content of less than about 2000 ppmv and wherein: the chlorination zone is closed to the atmosphere, and/or the chlorination zone is operated under atmospheric or superatmospheric pressure, and/or the chlorination zone is operated under an inert atmosphere, and/or the content of dissolved oxygen in the alkene or alkane feedstock is less than 2000 ppm.Type: ApplicationFiled: April 12, 2017Publication date: June 20, 2019Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek ONDRUS, Pavel KUBICEK
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Patent number: 10294179Abstract: 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 bType: GrantFiled: December 29, 2017Date of Patent: May 21, 2019Assignee: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Karel Filas, Pavel Kubicek, Zdenek Ondrus, Petr Sladek
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Publication number: 20190135717Abstract: 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: December 25, 2018Publication date: May 9, 2019Applicant: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.Inventors: Zdenek ONDRUS, Pavel Kubicek, Karel Filas, Petr Sladek
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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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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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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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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