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Patent Searching and Data


Title:
NEW INDUSTRIAL PROCESS FOR MANUFACTURING OF PERFLUOROPENTANE (PFP)
Document Type and Number:
WIPO Patent Application WO/2022/160762
Kind Code:
A1
Abstract:
Provided are a new industrial process for manufacturing of perfluoropentane (PFP) and the manufacture of a novel intermediate compound thereof, as well as a novel intermediate compound itself and the use thereof in the process for manufacturing of perfluoropentane (PFP). Accordingly, provided are a process for the manufacture of the compound PFP (perfluoropentane), and/or of the compound perfluorinated 4-methylbutyrolactone, i.e., the precursor or intermediate compound of PFP (perfluoropentane), characterized in that the process comprises direct fluorination reaction with F 2gas as the fluorination agent, and/or from the fluorination reaction with SF 4 as the fluorination agent. Herein provides an efficient and simplified new industrial process for manufacturing of perfluoropentane (PFP) and/or of the compound perfluorinated 4-methylbutyrolactone, and preferably enabling large-scale and/or industrial production of perfluoropentane (PFP) and/or of the compound perfluorinated 4-methylbutyrolactone by means of special equipment and special reactor design. The process, for example, is carried out in an autoclave, in a (closed) column reactor, a counter-current reactor system, in particular in a loop reactor system, or in a counter-current (loop) system ("inverse gas scrubber system"), in a tube reactor system, a continuous flow reactor system, in a coil reactor system or in a microreactor system, preferably in a counter-current reactor system or in a microreactor.

Inventors:
CUI WEILONG (CN)
LUO WEIFEN (CN)
DING RONGWEN (CN)
Application Number:
PCT/CN2021/121516
Publication Date:
August 04, 2022
Filing Date:
September 29, 2021
Export Citation:
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Assignee:
FUJIAN YONGJING TECH CO LTD (CN)
International Classes:
C07C17/18; C07C19/08; C07D307/33
Foreign References:
EP0967191A11999-12-29
US5558854A1996-09-24
EP0967191A11999-12-29
US5268122A1993-12-07
EP0619287A11994-10-12
EP0031519A11981-07-08
US5093432A1992-03-03
EP1637271B12011-05-18
Other References:
MA CHAO-FENG;SHI NENG-FU;JIN JIA-MIN;ZHOU FEI-XIANG;LIU WU-CAN;LI LING;HUANG WEI: "Research Progress in Preparation of Perfluoro-n-pentane", ZHEJIANG CHEMICAL INDUSTRY, vol. 5, no. 51, 15 May 2020 (2020-05-15), pages 1 - 5, XP055905595, ISSN: 1006-4184
CHAMBERS, RICHARD D. ET AL.: "FREE RADICAL CHEMISTRY. PART 5. [1] A NEW APPROACH TO THE SYNTHESIS OF PERFLUORINATED ETHERS", JOURNAL OF FLUORINE CHEMISTRY, vol. 3, no. 29, 1 September 1985 (1985-09-01), pages 323 - 339, XP055904819
KRESPAN, CARL G. ET AL.: "Fluorocarbanion Chemistry. A Versatile Synthesis of Functionalized Fluoro Ketones", J. ORG. CHEM., vol. 3, no. 51, 1 February 1986 (1986-02-01), pages 320 - 326, XP055904820
ABE, TAKASHI ET AL.: "THE REACTION OF PERFLUORO-2, 4-DIALKYLOXOLANES WITH ANHYDROUS ALUMINUM CHLORIDE", JOURNAL OF FLUORINE CHEMISTRY, vol. 5, no. 12, 30 November 1978 (1978-11-30), pages 359 - 379, XP055904823
G. MOTTA ET AL., MINERVA MED., vol. 74, no. 1-2, 14 January 1983 (1983-01-14), pages 1 - 18
N. SHNOY, ANAESTHESIST, vol. 28, no. 11, 1979, pages 503 - 10
D.D. LAWSON ET AL., J. FLUORINE CHEMISTRY, vol. 12, 1978, pages 221 - 236, Retrieved from the Internet
SHAFFER, THOMAS H.WOLFSON, MARIA R.CLARK, LELAND C.: "Liquid ventilation", PEDIATRIC PULMONOLOGY, vol. 14, no. 2, October 1992 (1992-10-01), pages 102 - 109
S. SARKAR, INDIAN J CRIT CARE MED., vol. 12, no. 3, July 2008 (2008-07-01), pages 140 - 144, Retrieved from the Internet
M. A. KANDATAI ET AL., LANGMUIR, vol. 26, no. 7, 6 April 2010 (2010-04-06), pages 4655 - 4660
BURFORD ET AL., IND. ENG. CHEM., vol. 39, 1947, pages 328
G. A. BOSWELL, ORGANIC REACTIONS (NEW YORK, vol. 21, 1974, pages 1 - 124
WANG, CHIA LIN J., ORGANIC REACTIONS (NEW YORK, vol. 34, 1985, pages 319
HUTCHINSON ET AL.: "Elemental Fluorine in Organic Chemistry", ORGANOFLUORINE CHEMISTRY, vol. 193, 1997, pages 1, XP008130464
Attorney, Agent or Firm:
FUZHOU GEMHOPE PATENT AGENCY (CN)
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