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:
Sep. 13, 1977
Filed:
Feb. 16, 1972
William Austin Barber, Stamford, CT (US);
John Allan Fetchin, Stamford, CT (US);
American Cyanamid Company, Stamford, CT (US);
Abstract
Hydration of nitriles, e.g. acrylonitrile, with water in presence of a catalyst comprising catalytic elemental copper prepared by reduction of a copper compound, e.g. copper sulfate, by means of a solution of soluble strong reducing agent, e.g. aqueous solution of sodium borohydride, is described. The copper is thus produced in very fine particulate form having unusually high catalytic activity by comparison with other copper catalyst. Improvements in the reduction are accomplished in alkaline, (e.g. NaOH), solutions and even further in alkaline solution comprising a reducing sugar, e.g. dextrose, in the solution with the strong reducing agent.