Patent · US Expired

Manufacture of formaldehyde

US3932522A · kind A · utility

3Cited by

4References

9Claims

0Family size

Assignee

Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

Karl Seither
Guenther Matthias
Hans Diem · Mannheim, DE
Oskar Hussy
Hans Haas

Key dates

Filing date	Mar 22, 1972
Grant date	Jan 13, 1976
Priority date	—
Expiry date	Mar 22, 1992

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/38
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The manufacture of formaldehyde by oxidative dehydrogenation of crude methanol in the presence of a silver catalyst, the crude methanol being caused to impinge against baffle plates before the reaction takes place, the impurities which separate at the baffle plates being collected. The formaldehyde manufactured by the process of the invention is valuable as a disinfectant, tanning agent, reducing agent and intermediate in the manufacture of synthetic resins, adhesives and plastics.

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