Patent · US Active

Method of regenerating ruthenium catalysts for the ring hydrogenation of phthalates

US8598060B2 · kind B2 · utility

1Cited by

12References

19Claims

0Family size

Assignee

BASF SE

Inventors

Jochem Henkelmann · Mannheim, DE
Michael Becker · Ludwigshafen, DE
Felix Richter · Ludwigshafen, DE
Thomas Schäfer · Basel, CH

Key dates

Filing date	Jul 25, 2007
Grant date	Dec 3, 2013
Priority date	—
Expiry date	May 2, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/584
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a method of regenerating a ruthenium catalyst for the hydrogenation of phthalates, which comprises flushing the catalyst with inert gas in a regeneration step until the original activity or part of the original activity has been attained.

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