Patent · US Expired

Production of perfluoroalkanes

US5434319A · kind A · utility

2Cited by

3References

6Claims

0Family size

Assignee

SOLVAY FLUOR und DERIVATE GmbH · DE

Inventors

Ralf Herkelmann · Hannover, DE
Werner Rudolph · Hannover, DE
Ruediger Sander · Sehnde, DE
Alf Schulz · Großburgwedel, DE

Key dates

Filing date	Mar 30, 1994
Grant date	Jul 18, 1995
Priority date	—
Expiry date	Mar 30, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/395
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for stabilizing and/or purifying perfluoroalkanes, particularly from perfluoroalkanes which contain polyfluoroalkane by-products from their production process, in which the perfluoroalkanes are stabilized and/or purified by reacting the polyfluoroalkane(s) with fluorine at elevated pressure and temperature, to obtain perfluoroalkanes which are substantially free of polyfluoroalkanes. The method has the advantage that the perfluorination takes place rapidly and without significant formation of by-products or decomposition products.

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