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“Use Of Ternary Compositions”
Abstract: The invention relates to the use of compositions essentially containing 2 3 3 3-tetrafluoropropene HFC-134a and HFC-32 in compression refrigeration systems comprising exchangers operating in counterflow mode.
Notices, Deadlines & Correspondence
Patent Information
Applicants
ARKEMA FRANCE
Inventors
1. RACHED Wissam
Specification
WE CLAIM:
1. A ternary composition for heat-transfer fluid, in compression refrigeration systems with
exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency
comprising a mixture of 2,3,3,3-tetrafluoropropene,1,1,1,2-tetrafluoroethane
(HFC-134a) and difluoromethane(HFC-32).
2. The ternary composition as claimed in claim 1, wherein the composition essentially contains from 2 to 80% by weight of 2,3,3,3-tetrafluoropropene, from 2 to 80% by weight of HFC-134a and from 2 to 80% by weight of HFC-32.
3. The ternary composition as claimed in claim 1, wherein the composition essentially contains from 5 to 25% by weight of 2,3,3,3-tetrafluoropropene, from 60 to 80% by weight of HFC-134a and from 15 to 25% by weight of HFC-32.
4. The ternary composition as claimed in claim 1, wherein the composition essentially contains from 45 to 80% by weight, preferably from 65 to 80% by weight of 2,3,3,3-tetrafluoropropene, from 5 to 25% by weight, preferably from 5 to 10% by weight of HFC-134a and from 15 to 30% by weight of HFC-32.
5. The ternary composition as claimed in claims 1 to 4, wherein the composition is stabilized.
6. The ternary composition as claimed in claim 1 is employed in a heat-transfer process as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency.
7. The ternary composition as claimed in claim 6, wherein the composition essentially contains from 5 to 25% by weight of 2,3,3,3-tetrafluoropropene, from 60 to 80% by weight of HFC-134a and from 15 to 25% by weight of HFC-32.
8. The ternary composition as claimed in claim 6, wherein the composition essentially contains from 45 to 80% by weight, preferably from 65 to 80% by weight of 2,3,3,3-tetrafluoropropene, from 5 to 25% by weight, preferably from 5 to 10% by weight of HFC-134a and from 15 to 30% by weight of HFC-32.
9. The ternary composition as claimed in claim 6, wherein the process is carried out in the presence of lubricant.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | Form-5.pdf | 2012-04-09 |
| 2 | Form-3.pdf | 2012-04-09 |
| 3 | Form-1.pdf | 2012-04-09 |
| 4 | 3049-CHENP-2012 FORM-13 11-04-2012.pdf | 2012-04-11 |
| 5 | 3049-CHENP-2012 CORRESPONDENCE OTHERS 11-04-2012.pdf | 2012-04-11 |
| 6 | 3049-CHENP-2012 POWER OF ATTORNEY 24-05-2012.pdf | 2012-05-24 |
| 7 | 3049-CHENP-2012 FORM-1 24-05-2012.pdf | 2012-05-24 |
| 8 | 3049-CHENP-2012 ENGLISH TRANSLATION 24-05-2012.pdf | 2012-05-24 |
| 9 | 3049-CHENP-2012 CORRESPONDENCE OTHERS 24-05-2012.pdf | 2012-05-24 |
| 10 | 3049-CHENP-2012 CORRESPONDENCE OTHERS 26-09-2012.pdf | 2012-09-26 |
| 11 | 3049-CHENP-2012 FORM-3 26-09-2012.pdf | 2012-09-26 |
| 12 | 3049-CHENP-2012 FORM-18 02-08-2013.pdf | 2013-08-02 |
| 13 | 3049-CHENP-2012 CORRESPONDENCE OTHERS 02-08-2013.pdf | 2013-08-02 |
| 14 | 3049-CHENP-2012-FER.pdf | 2017-09-13 |
| 15 | 3049-CHENP-2012-OTHERS [12-03-2018(online)].pdf | 2018-03-12 |
| 16 | 3049-CHENP-2012-FER_SER_REPLY [12-03-2018(online)].pdf | 2018-03-12 |
| 17 | 3049-CHENP-2012-CLAIMS [12-03-2018(online)].pdf | 2018-03-12 |
| 18 | Correspondence by Agent_Power of Attorney_21-03-2018.pdf | 2018-03-21 |
| 19 | 3049-CHENP-2012-FORM-26 [22-10-2019(online)].pdf | 2019-10-22 |
| 20 | 3049-CHENP-2012-Correspondence to notify the Controller (Mandatory) [22-10-2019(online)].pdf | 2019-10-22 |
| 21 | 3049-CHENP-2012-HearingNoticeLetter24-10-2019.pdf | 2019-10-24 |
| 22 | 3049-CHENP-2012-Written submissions and relevant documents (MANDATORY) [07-11-2019(online)].pdf | 2019-11-07 |
| 23 | 3049-CHENP-2012-PatentCertificate31-12-2020.pdf | 2020-12-31 |
| 24 | 3049-CHENP-2012-IntimationOfGrant31-12-2020.pdf | 2020-12-31 |
Search Strategy
| 1 | 3049chenp2012searchreport_17-08-2017.pdf |