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1. (WO2010024366) AZEOTROPIC OR AZEOTROPE-LIKE COMPOSITION AND PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/024366    International Application No.:    PCT/JP2009/065023
Publication Date: 04.03.2010 International Filing Date: 21.08.2009
IPC:
C07C 17/383 (2006.01), C07C 21/18 (2006.01)
Applicants: DAIKIN INDUSTRIES, LTD. [JP/JP]; Umeda Center Building, 4-12, Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-shi, Osaka 5308323 (JP) (For All Designated States Except US).
TAKAHASHI, Kazuhiro [JP/JP]; (JP) (For US Only)
Inventors: TAKAHASHI, Kazuhiro; (JP)
Agent: Saegusa & Partners; Kitahama TNK Building, 1-7-1, Doshomachi, Chuo-ku, Osaka-shi, Osaka 5410045 (JP)
Priority Data:
61/091,783 26.08.2008 US
Title (EN) AZEOTROPIC OR AZEOTROPE-LIKE COMPOSITION AND PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
(FR) COMPOSITION AZÉOTROPIQUE OU DF TYPE AZÉOTROPIQUE ET PROCÉDÉ DE PRODUCTION DE 2,3,3,3-TÉTRAFLUOROPROPÈNE
Abstract: front page image
(EN)The present invention provides a process for producing 2,3,3,3-tetrafluoropropene, comprising distilling a mixture of water and 2,3,3,3-tetrafluoropropene to separate the mixture into a first stream and a second stream, the first stream containing 2,3,3,3-tetrafluoropropene with a water content higher than the original mixture, and the second stream containing 2,3,3,3-tetrafluoropropene with a water content lower than the original mixture; and obtaining 2,3,3,3-tetrafluoropropene with a reduced water content from the second stream. The process of the invention can efficiently remove water from 2,3,3,3-tetrafluoropropene (HFO-1234yf).
(FR)L'invention concerne un procédé de production de 2,3,3,3-tétrafluoropropène qui consiste à distiller un mélange d'eau et de 2,3,3,3-tétrafluoropropène pour scinder le mélange en un premier flux et un second flux, le premier contenant du 2,3,3,3-tétrafluoropropène avec une teneur en eau supérieure à celle du mélange d'origine, et le second contenant du 2,3,3,3-tétrafluoropropène avec une teneur en eau inférieure à celle du mélange d'origine; et consistant à procurer du 2,3,3,3-tétrafluoropropène à teneur en eau réduitre à partir du second flux. Le procédé selon l'invention permet de diminuer efficacement la teneur en eau de 2,3,3,3-tétrafluoropropène (HFO-1234yf).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)