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:
Sep. 11, 1990
Filed:
Feb. 17, 1989
Applicant:
Inventors:
Assignee:
Tanaka Kikinzoku Kogyo K.K., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502339 ; 502185 ;
Abstract
Disclosed herein is a process for reducing metal salts in which catalyst metal containing ions are reduced to the corresponding metals with a reducing agent which contains a sulfur atom and is relatively weak in reducing ability such as sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, sodium metabisulfite, potassium metabisulfite and ammonium metabisulfite. Since the reducing agent is weak, the size of the catalyst metals supported on the supports is small to enhance the catalytic activity.
Tsurumi, Kazunori. (1990). Process for producing metal supported catalyst having high surface area (U.S. Patent No. 4956331). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4956331
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