http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2011130904-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C21-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-25 |
| filingDate | 2009-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2013-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2011130904-A |
| titleOfInvention | METHODS FOR PRODUCING 1,1-Dichloro-2,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene |
| abstract | 1. The method of obtaining 1,1-dichloro-2,3,3,3-tetrafluoropropene, characterized by the introduction of a mixture of isomers of dichloropentafluoropropane, which contains 1,1-dichloro-2,2,3,3,3-pentafluoropropane, in contact with water with an alkali solution in the presence of a phase transfer catalyst, and thus selectively dehydrofluorinating only 1,1-dichloro-2,2,3,3,3-pentafluoropropane in the mixture. 2. The method of obtaining 1,1-dichloro-2,3,3,3-tetrafluoropropene according to claim 1, where the mixture of isomers of dichloropentafluoropropane contains, in addition to 1,1-dichloro-2,2,3,3,3-pentafluoropropane, at least least one isomer selected from 1,3-dichloro-1,2,2,3,3-pentafluoropropane, 2,2-dichloro-1,1,3,3,3-pentafluoropropane, 1,2-dichloro-1 , 2,3,3,3-pentafluoropropane and 2,3-dichloro-1,1,2,3,3-pentafluoropropane. 3. The method for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene according to claim 1, wherein the content of 1,1-dichloro-2,2,3,3,3-pentafluoropropane in the mixture of dichloropentafluoropropane isomers is at most 99, 5 mol% 4. The method for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene according to claim 1, wherein the concentration of the aqueous alkali solution is from 0.5 wt% to 40 mol%. 5. The method for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene according to claim 1, wherein the temperature at which the mixture of isomers of dichloropentafluoropropane is brought into contact with an aqueous alkali solution in the presence of a phase transfer catalyst is from 0 to 80 ° C. .6. The method for producing 1,1-dichloro-2,3,3,3-tetrafluoropropene according to claim 1, wherein the temperature at which the mixture of isomers of dichloropentafluoropropane is brought into contact with an aqueous alkali solution in the presence of a phase transfer catalyst is from 0 to 25 ° C. .7. A method for producing 2,3,3,3-tetrafluoropropene, which includes the reaction of interaction of 1,1-dichloro-2,3,3,3-tetrafluoropropene obtained by the method as described in claim 1, with hydrogen in the presence of |
| priorityDate | 2008-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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Total number of triples: 30.