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:
Aug. 02, 1983
Filed:
Oct. 23, 1981
Applicant:
Inventors:
Yoshitoshi Tsunoda, Komae, JP;
Shimpei Tomita, Kurashiki, JP;
Chihiro Miyazawa, Kurashiki, JP;
Yasuro Omori, Okayama, JP;
Assignee:
Mitsubishi Chemical Industries Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2604 / ; 2524 / ; 252416 ; 252417 ;
Abstract
A method for the recovery of a Group VIII noble metal solid complex is described, which comprises bringing an organic compound-containing solution containing therein a Group VIII noble metal complex having a tertiary organophosphorous compound as a ligand into contact with an oxidizing agent in the presence of a free tertiary organophosphorous compound, an organic polar solvent, water, and a basic substance to preciptate a solid complex of the Group VIII noble metal, and a separating the precipitated Group VIII noble metal solid complex from the solution.