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:
May. 13, 1980
Filed:
Aug. 28, 1978
Applicant:
Inventors:
Lawrence J Jacoby, Albany, OR (US);
Richard A Rosenau, Salem, OR (US);
Dorothy P Carter, Albany, OR (US);
Ralph H Nielsen, Albany, OR (US);
Kenneth C Ash, Corvallis, OR (US);
Assignee:
Teledyne Industries, Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ;
U.S. Cl.
CPC ...
423 70 ; 423 73 ; 4236585 ; 7510 / ;
Abstract
A method of essentially preventing the formation of 3-mercapto-4-methyl-2-pentanone by selectively controlling an ammonium thiocyanate-methyl isobutyl ketone regeneration system by maintaining the pH in the range of 4 to 9, and the temperature below 150.degree. F.