Patent · US Expired

Process for the preparation of difluoromethane

US5714653A · kind A · utility

0Cited by

5References

10Claims

0Family size

Assignee

SOLVAY (Société Anonyme) · BE

Inventors

Vincent Wilmet · Louvain-la-Neuve, BE
Francine Janssens · Vilvoorde, BE

Key dates

Filing date	Mar 18, 1996
Grant date	Feb 3, 1998
Priority date	—
Expiry date	Mar 18, 2016

Classification

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

Abstract

Difluoromethane is produced by reaction, in the liquid phase, between dichloromethane and hydrogen fluoride, in the presence of a titanium or tin halide.

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