Patent · US Active

Process for preparing isocyanates

US8835673B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

BASF SE

Inventors

Torsten Mattke · Ludwigshafen am Rhein, DE
Eckhard Stroefer · Mannheim, DE
Julia Leschinski · Mannheim, DE
Radwan Abdallah · Ludwigshafen, DE
Axel Franzke · Goldkronach, DE
Michael Bock · Ruppertsberg, DE

Key dates

Filing date	Dec 3, 2010
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Aug 28, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C263/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for preparing aromatic isocyanates by reacting the corresponding formamides with an oxygen-comprising gas over noble metal catalysts at temperatures of from 300 to 600° C. and a contact time of from 1 to 1000 ms, wherein:

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