Azeotrope compositions comprising...

Details Azeotrope compositions comprising... Azeotrope compositions comprising...

2006-10-30

2008-09-09

Parsa, Jafar (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C570S178000

Reexamination Certificate

active

07423188

ABSTRACT:
Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride. These azeotrope and near-azeotrope compositions are useful in processes to produce E-1,3,3,3-tetrafluoropropene and in processes to purify E-1,3,3,3-tetrafluoropropene from mixtures of E-1,3,3,3-tetrafluoropropene with 1,1,1,3,3-pentafluoropropane and/or with hydrogen fluoride.

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PCT International Search Report dated May 16, 2007 for International Application No. PCT/US2006/042668.

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