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. 28, 1995
Filed:
Feb. 23, 1994
Applicant:
Inventors:
Assignee:
Japan Pionics Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C07F / ; C23C / ; C23C / ;
U.S. Cl.
CPC ...
423219 ; 423210 ; 556-1 ; 2606 / ;
Abstract
There is disclosed a process for purification a gaseous organometallic compound containing impurities by bringing the compound into contact with a catalyst comprising a copper or nickel component as the essential ingredient to remove oxygen contained in the compound. The above-mentioned process is capable removal of oxygen in an organometallic compound as low as 0.1 ppm and further to a ultralow concentration of 0.01 ppm, which removal has heretofore been impossible, and thereby the production of a ultrapure organometallic compound has been made possible.