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:
Dec. 19, 2000
Filed:
May. 17, 1999
Applicant:
Inventors:
Charles M Cook, Williamsville, NY (US);
David E Albright, Grand Island, NY (US);
Michael C Savidakis, Niagara Falls, NY (US);
Assignee:
Occidental Chemical Corporation, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568 72 ; 568 69 ; 568 61 ;
Abstract
Disclosed is a method of making a mercaptan by reacting hydrogen sulfide with an olefin in the presence of a heterogeneous acidic catalyst. The catalyst can be made by calcining a mixture of a hydroxide, such as Zr(OH).sub.4 or Ti(OH).sub.4, with an acidic site donor, such as H.sub.2 SO.sub.4, (NH.sub.4).sub.2 SO.sub.4, or WO.sub.3.