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Patent Searching and Data


Title:
HEPTAFLUOROCYCLOPENTANE COMPOSITION AND ITS RECOVERY
Document Type and Number:
Japanese Patent JP2000119203
Kind Code:
A
Abstract:

To provide a new hydrofluorocarbon composition having excellent distillation recovering property for reducing environmental pollution or a convenience of re-using and also provide a method for its recovery.

This heptafluorocyclopentane composition contains 1,1,2,2,3,3,4- heptafluorocyclopentane and a 4-5C linear ketones and/or a 6-7C aromatic hydrocarbons. The composition is recovered by distilling the used composition containing polluted substances in a single distillation method without a large variation of a component ratio before and after the distillation.


Inventors:
YAMADA TOSHIRO
Application Number:
JP30324598A
Publication Date:
April 25, 2000
Filing Date:
October 09, 1998
Export Citation:
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Assignee:
NIPPON ZEON CO
International Classes:
C11D7/24; C07C23/08; C11D7/26; C11D7/30; C11D7/50; C11D11/00; (IPC1-7): C07C23/08; C11D7/24; C11D7/26; C11D7/30; C11D7/50; C11D11/00
Attorney, Agent or Firm:
Uchida Yukio