Patent · US Expired

Production of anthraquinone

US4151182A · kind A · utility

4Cited by

4References

8Claims

0Family size

Assignee

Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

Heinz Engelbach
Hermann Wistuba · Mannheim, DE
Michael Jolyon Sprague · Mannheim, DE
Hans-Juergen Sturm · Havelsee, DE
Herbert Armbrust · Havelsee, DE

Key dates

Filing date	May 9, 1977
Grant date	Apr 24, 1979
Priority date	—
Expiry date	May 9, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/313
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for the production of anthraquinone by catalytic oxidation of indans or diphenylmethane derivatives with oxygen in the presence of a vanadium (V) compound with or without one or more than one compund of potassium, boron, thallium, antimony and/or caesium. Anthraquinone which can be prepared by the process according to this invention is a valuable starting material for the production of dyes and pesticides.

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