Title:
【発明の名称】1,1―ジクロロ―1―フルオロエタンと1,1,1,3,3―ペンタフルオロブタンとの分離方法
Document Type and Number:
Japanese Patent JP2619721
Kind Code:
B2
Abstract:
1,1-Dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutane are separated from their liquid mixtures, such as liquid mixtures resulting from the hydrofluorination of 1,1,1-trichloroethane or vinylidene chloride. 1,1-Dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutane are completely separated by distillation, by adding to the mixture thereof a liquid containing at least about 3 moles of hydrogen fluoride per mole of 1,1-dichloro-1-fluoroethane in the mixture subject to separation.
Inventors:
John Aloycias Wismer
Application Number:
JP26033989A
Publication Date:
June 11, 1997
Filing Date:
October 06, 1989
Export Citation:
Assignee:
Penwalt Corporation
International Classes:
C07C17/38; C07C17/383; C07C17/386; C07C17/395; C07C19/08; C07C19/10; C07C19/12; (IPC1-7): C07C19/12; C07C17/383; C07C17/386; C07C19/08
Domestic Patent References:
| JP54100302A | ||||
| JP2196734A |
Other References:
【文献】米国特許2549609(US,A)
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)