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:
Jul. 31, 1990
Filed:
May. 17, 1989
Applicant:
Inventor:
David J Gulliver, North Humberside, GB;
Assignee:
BP Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 22 ; 423D / ; 502 22 ; 502 28 ;
Abstract
A process for recovering Group VIII metals from process streams derived from carbonylation processes is provided. The process comprises contacting the process stream with an extracting stream comprising acetic acid in water and thereafter recovering the extracting stream. The process stream is preferably one which contains tar and is produced by diluting a side stream from a carbonylation reactor with methyl iodide. During the process the Group VIII metal is extracted into the extracting stream from the process stream.