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. 28, 1981
Filed:
Dec. 28, 1979
Ching-Yong Wu, O'Hara Township, Allegheny County, PA (US);
Thaddeus P Kobylinski, Gibsonia, PA (US);
Gulf Research & Development Company, Pittsburgh, PA (US);
Abstract
A catalyst residue containing osmium catalyst having a substantial component with a valency state less than +5 is regenerated to a valency state greater than +5 by contacting the residue with an organic hydroperoxide at a pH greater than 7 and the regenerated catalyst residue is recycled to a hydroxylation reactor containing ethylene or propylene, a polar organic solvent, an aqueous solution of cesium, rubidium, potassium or tetraalkylammonium hydroxide and an organic hydroperoxide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile