Patent · US Expired

Process for ozonization of unsaturated organic compounds

US4940808A · kind A · utility

17Cited by

4References

21Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Paul Schulz · Wuppertal, DE
Michael J. Virnig · Tucson, US
Franz-Josef Carduck · Haan, DE

Key dates

Filing date	Jul 7, 1988
Grant date	Jul 10, 1990
Priority date	—
Expiry date	Jul 7, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/40
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the ozonization of unsaturated organic compounds in a reaction column through which the unsaturated compounds--in solution in a protic solvent--and an ozone-containing carrier gas and an inert coolant are passed downward in co-current flow to provide for an improved coolant effect and an increased ozonization yield where the coolant comprises a compound gaseous or liquid at ambient temperature with a boiling point preferably in the range from +20.degree. C. to -200.degree. C. The boiling point of the coolant is preferably at least 5.degree. C. below the ozonization temperature.

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