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Method For Producing 2 3 3 3 Tetrafluoropropene And Recycling 1 1 1 2 2 Pentafluoropropane Free Of Impurities
Abstract: The invention relates to a method for purifying 1 1 1 2 2 pentafluoropropane (245cb) using a first composition comprising 1 1 1 2 2 pentafluoropropane and at least one of the compounds selected from the group consisting of 1 1 difluoroethane (152a) 1 1 1 2 tetrafluoroethane (134a) trans 1 3 3 3 tetrafluoro 1 propene (1234ze E) cis 1 3 3 3 tetrafluoro 1 propene (1234ze Z) trans 1 2 3 3 3 pentafluoropropene (1225ye E) cis 1 2 3 3 3 10 pentafluoropropene (1225ye Z) and 3 3 3 trifluoropropene (1243zf) said method comprising the steps of: a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; b) extractive distillation of said second composition in order to form i) a third composition comprising said organic extraction agent and said at least one of the compounds selected from the group consisting of 1 1 difluoroethane (152a) 1 1 1 2 tetrafluoroethane (134a) trans 1 3 3 3 tetrafluoro 1 propene (1234ze E) cis 1 3 3 3 tetrafluoro 1 propene (1234ze Z) trans 1 2 3 3 3 pentafluoropropene (1225ye E) cis 1 2 3 3 3 pentafluoropropene (1225ye Z) and 3 3 3 trifluoropropene(1243zf); and ii) a stream comprising the 1 1 1 2 2 pentafluoropropane; and c) recovery and separation of said third composition. The invention also relates to a method for producing 1234yf including the method for purifying 1 1 2 2 pentafluoropropane.
Notices, Deadlines & Correspondence
Patent Information
Applicants
ARKEMA FRANCE
Inventors
1. BABA AHMED Abdelatif
2. COLLIER Bertrand
3. DEUR BERT Dominique
4. WENDLINGER Laurent
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 201817014735-FER.pdf | 2021-10-18 |
| 1 | 201817014735-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [18-04-2018(online)].pdf | 2018-04-18 |
| 2 | 201817014735-IntimationOfGrant23-02-2021.pdf | 2021-02-23 |
| 2 | 201817014735-STATEMENT OF UNDERTAKING (FORM 3) [18-04-2018(online)].pdf | 2018-04-18 |
| 3 | 201817014735-PRIORITY DOCUMENTS [18-04-2018(online)].pdf | 2018-04-18 |
| 3 | 201817014735-PatentCertificate23-02-2021.pdf | 2021-02-23 |
| 4 | 201817014735-POWER OF AUTHORITY [18-04-2018(online)].pdf | 2018-04-18 |
| 4 | 201817014735-CLAIMS [29-10-2020(online)].pdf | 2020-10-29 |
| 5 | 201817014735-FORM 1 [18-04-2018(online)].pdf | 2018-04-18 |
| 5 | 201817014735-DRAWING [29-10-2020(online)].pdf | 2020-10-29 |
| 6 | 201817014735-FER_SER_REPLY [29-10-2020(online)].pdf | 2020-10-29 |
| 6 | 201817014735-DRAWINGS [18-04-2018(online)].pdf | 2018-04-18 |
| 7 | 201817014735-FORM 3 [29-10-2020(online)].pdf | 2020-10-29 |
| 7 | 201817014735-DECLARATION OF INVENTORSHIP (FORM 5) [18-04-2018(online)].pdf | 2018-04-18 |
| 8 | 201817014735-FORM-26 [29-10-2020(online)].pdf | 2020-10-29 |
| 8 | 201817014735-COMPLETE SPECIFICATION [18-04-2018(online)].pdf | 2018-04-18 |
| 9 | 201817014735-OTHERS [29-10-2020(online)].pdf | 2020-10-29 |
| 9 | 201817014735.pdf | 2018-04-19 |
| 10 | 201817014735-FORM 18 [17-12-2019(online)].pdf | 2019-12-17 |
| 10 | 201817014735-Proof of Right (MANDATORY) [31-05-2018(online)].pdf | 2018-05-31 |
| 11 | 201817014735-FORM 3 [29-06-2018(online)].pdf | 2018-06-29 |
| 11 | 201817014735-FORM 3 [31-05-2018(online)].pdf | 2018-05-31 |
| 12 | 201817014735-Verified English translation (MANDATORY) [29-06-2018(online)].pdf | 2018-06-29 |
| 12 | abstract.jpg | 2018-06-01 |
| 13 | 201817014735-Correspondence-060618.pdf | 2018-06-18 |
| 13 | 201817014735-OTHERS-060618.pdf | 2018-06-18 |
| 14 | 201817014735-Correspondence-060618.pdf | 2018-06-18 |
| 14 | 201817014735-OTHERS-060618.pdf | 2018-06-18 |
| 15 | 201817014735-Verified English translation (MANDATORY) [29-06-2018(online)].pdf | 2018-06-29 |
| 15 | abstract.jpg | 2018-06-01 |
| 16 | 201817014735-FORM 3 [29-06-2018(online)].pdf | 2018-06-29 |
| 16 | 201817014735-FORM 3 [31-05-2018(online)].pdf | 2018-05-31 |
| 17 | 201817014735-Proof of Right (MANDATORY) [31-05-2018(online)].pdf | 2018-05-31 |
| 17 | 201817014735-FORM 18 [17-12-2019(online)].pdf | 2019-12-17 |
| 18 | 201817014735-OTHERS [29-10-2020(online)].pdf | 2020-10-29 |
| 18 | 201817014735.pdf | 2018-04-19 |
| 19 | 201817014735-COMPLETE SPECIFICATION [18-04-2018(online)].pdf | 2018-04-18 |
| 19 | 201817014735-FORM-26 [29-10-2020(online)].pdf | 2020-10-29 |
| 20 | 201817014735-DECLARATION OF INVENTORSHIP (FORM 5) [18-04-2018(online)].pdf | 2018-04-18 |
| 20 | 201817014735-FORM 3 [29-10-2020(online)].pdf | 2020-10-29 |
| 21 | 201817014735-DRAWINGS [18-04-2018(online)].pdf | 2018-04-18 |
| 21 | 201817014735-FER_SER_REPLY [29-10-2020(online)].pdf | 2020-10-29 |
| 22 | 201817014735-DRAWING [29-10-2020(online)].pdf | 2020-10-29 |
| 22 | 201817014735-FORM 1 [18-04-2018(online)].pdf | 2018-04-18 |
| 23 | 201817014735-CLAIMS [29-10-2020(online)].pdf | 2020-10-29 |
| 23 | 201817014735-POWER OF AUTHORITY [18-04-2018(online)].pdf | 2018-04-18 |
| 24 | 201817014735-PatentCertificate23-02-2021.pdf | 2021-02-23 |
| 24 | 201817014735-PRIORITY DOCUMENTS [18-04-2018(online)].pdf | 2018-04-18 |
| 25 | 201817014735-STATEMENT OF UNDERTAKING (FORM 3) [18-04-2018(online)].pdf | 2018-04-18 |
| 25 | 201817014735-IntimationOfGrant23-02-2021.pdf | 2021-02-23 |
| 26 | 201817014735-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [18-04-2018(online)].pdf | 2018-04-18 |
| 26 | 201817014735-FER.pdf | 2021-10-18 |
Search Strategy
| 1 | 2020-04-2914-23-16201817014735E_29-04-2020.pdf |