Title:
E-1,3,3,3-テトラフルオロプロペンとフッ化水素とを含む共沸混合物組成物およびその使用
Document Type and Number:
Japanese Patent JP2009513715
Kind Code:
A
Abstract:
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene ( E -HFC-1234ze) and hydrogen fluoride, and a process for the separation of E -HFC-1234ze from a mixture comprising an azeotrope or near-azeotrope composition of E -HFC-1234ze and hydrogen fluoride, said process comprising:
a) subjecting said mixture to a first distillation step in which a composition enriched in either (i) hydrogen fluoride or (ii) E -HFC-1234ze is removed as a first distillate composition with a first bottoms composition being enriched in the other of said components (i) or (ii); and
b) subjecting said first distillate composition to a second distillation step conducted at a different pressure than the first distillation step in which the component enriched as first bottoms composition in (a) is removed in a second distillate composition with a second bottoms composition enriched in the same component which was enriched in the first distillate composition.
Inventors:
Ralph Newton Miller
Mario Joseph Nappa
Belleur Knot Malical Junalao
Allen Capron Sibelt
Mario Joseph Nappa
Belleur Knot Malical Junalao
Allen Capron Sibelt
Application Number:
JP2008539003A
Publication Date:
April 02, 2009
Filing Date:
November 01, 2006
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C07C17/383; B01J27/12; B01J27/20; C07C17/25; C07C21/18; C07B61/00
Domestic Patent References:
| JPH11279088A | 1999-10-12 | |||
| JP2002510664A | 2002-04-09 | |||
| JP2000063300A | 2000-02-29 | |||
| JP2007509942A | 2007-04-19 | |||
| JPH11269105A | 1999-10-05 |
Foreign References:
| US6755942B1 | 2004-06-29 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe