The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1999
Filed:
Dec. 03, 1996
Applicant:
Inventors:
Mats Nystrom, Ytterby, SE;
Mikael Siverstrom, Partille, SE;
Assignee:
EKA Chemicals AB, Bohus, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
423588 ; 502 27 ; 502 28 ; 502325 ;
Abstract
The invention relates to a method of activating a catalyst for hydrogenation of anthraquinones or derivatives thereof used in production of hydrogen peroxide comprising the step of treating the catalyst with an acid. The invention also relates to a method of producing hydrogen peroxide.