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. 14, 2002
Filed:
Jan. 12, 2000
Applicant:
Inventors:
Robert J. Ferrell, Rutherford, NJ (US);
Thulasidas Chellppannair, Edison, NJ (US);
James K. Tseng, Berkeley Heights, NJ (US);
Assignee:
The BOC Group, Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D 1/00 ; C01D 1/502 ; C01D 3/06 ; C22B 2/610 ;
U.S. Cl.
CPC ...
C01D 1/00 ; C01D 1/502 ; C01D 3/06 ; C22B 2/610 ;
Abstract
Sulfur compounds present as sulfides and mercaptans in spent caustic streams from refinery and petrochemical processes are oxidized by contacting them with an oxygen-containing gas in a packed column recycle reactor.