Patent · US Expired

Method for separating hydrogen fluoride from its mixtures with 1,1,1,3,3-pentafluorobutane and method for making 1,1,1,3,3-pentafluorobutane

US6399841B1 · kind B1 · utility

2Cited by

3References

13Claims

0Family size

Assignee

SOLVAY (Société Anonyme) · BE

Inventors

Alain Lambert · Beauvechain, BE
Vincent Wilmet · Louvain-la-Neuve, BE

Key dates

Filing date	Sep 24, 2001
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Sep 24, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/206
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Hydrogen fluoride is separated from its mixtures with 1,1,1,3,3-pentafluorobutane by extraction using an organic solvent containing a 1,1,1,3,3-chloro(fluoro)butane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.