Patent · US Active

Method for removing cobalt deposits in a high-pressure olefin hydroformylation reactor

US10385422B2 · kind B2 · utility

0Cited by

4References

18Claims

0Family size

Assignee

BASF SE

Inventors

Jens Rudolph · Abu Dhabi, AE
Rainer Papp · Speyer, DE

Key dates

Filing date	Jul 30, 2014
Grant date	Aug 20, 2019
Priority date	—
Expiry date	Sep 23, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Method of removing cobalt deposits in a reactor for the cobalt-catalyzed high-pressure hydroformylation of olefins by treatment with aqueous nitric acid, wherein the reactor is at least partly filled with aqueous nitric acid and the temperature of the aqueous nitric acid is increased during the treatment.

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