Title:
【発明の名称】少なくとも1種のハイドロフルオロアルカンとフッ化水素を含有する混合物の分離方法、ハイドロフルオロアルカンの調製方法及び共沸組成物
Document Type and Number:
Japanese Patent JP2002533302
Kind Code:
A
Abstract:
Separation of hydrogen fluoride (HF) from 1,1,1,3,3-pentafluorobutane (I) is effected by extraction with an organic solvent containing at least one chloro- and/or fluorobutane derivative (II). Separation of HF from 1,1,1,3,3-pentafluorobutane (I) is effected by extraction with an organic solvent containing at least one compound of formula (II): CCl aF 3 - aCH 2CCl bF 2 - bCH 3 (II) a : 0-3; b : 0-2; a+b : 1 or more. An independent claim is also included for a process for producing (I) by hydrofluorination of (II), in which (II) used as an extraction solvent for separating HF from (I) is introduced into a (I)-producing reactor.
Inventors:
Lambert Allen
Wilmette Vincent
Wilmette Vincent
Application Number:
JP2000589475A
Publication Date:
October 08, 2002
Filing Date:
December 16, 1999
Export Citation:
Assignee:
Solvay
International Classes:
C01B7/19; C07B61/00; C07C17/20; C07C17/38; C07C19/08; C07C17/383; (IPC1-7): C07C17/383; C07C17/20; C07C19/08
Domestic Patent References:
| JPH08104655A | 1996-04-23 | |||
| JPH0741302A | 1995-02-10 | |||
| JPH11158089A | 1999-06-15 | |||
| JP2000281602A | 2000-10-10 | |||
| JPH11158088A | 1999-06-15 | |||
| JP2000524431A | ||||
| JPH05500672A | 1993-02-12 | |||
| JPH10101593A | 1998-04-21 | |||
| JPH0899918A | 1996-04-16 |
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)