Title:
SEPARATION OF COMPOUND HAVING CLOSE BOILING POINT BY ADDITION OF THIRD COMPOUND
Document Type and Number:
Japanese Patent JP2017222689
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for separating a plurality of halocarbons in an azeotropic composition.SOLUTION: A separation method includes; adding a third component to first halocarbon and second halocarbon to form a ternary azeotropic composition; and remaining a part of the first halocarbon and removing substantially all of the second halocarbon. Specifically, the method includes: adding the third component to the binary azeotropic composition; and separating 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-tetrafluoropropene (HCFC-1233xf), by normal distillation. More specifically, the method includes: distilling the ternary azeotropic composition containing the third component to separate HCFC-244bb from HCFC-1233xf (which is useful as intermediate body in production of 2,3,3,3-tetrafluoropropene (HFO-1234yf)).SELECTED DRAWING: None
More Like This:
| WO/2002/030852 | OXIDATIVE HALOGENATION OF AROMATIC COMPOUND |
Inventors:
MERKEL DANIEL C
KONSTANTIN A POKROVSKI
HSUEH S TUNG
PHAM HANG T
SINGH RAJIV R
KONSTANTIN A POKROVSKI
HSUEH S TUNG
PHAM HANG T
SINGH RAJIV R
Application Number:
JP2017138260A
Publication Date:
December 21, 2017
Filing Date:
July 14, 2017
Export Citation:
Assignee:
HONEYWELL INT INC
International Classes:
C07C17/386; C07C19/10
Domestic Patent References:
| JP2009298781A | 2009-12-24 | |||
| JP2009249632A | 2009-10-29 | |||
| JPH11228461A | 1999-08-24 | |||
| JP2009242799A | 2009-10-22 | |||
| JP2009513699A | 2009-04-02 | |||
| JP2008531474A | 2008-08-14 |
Foreign References:
| WO1994024077A1 | 1994-10-27 | |||
| WO1998015511A1 | 1998-04-16 |
Attorney, Agent or Firm:
Shinjiro Ono
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Toyoji Matsuda
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Toyoji Matsuda