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:
Jun. 04, 1985
Filed:
Dec. 09, 1981
Applicant:
Inventor:
Kenneth G Phillips, River Forest, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564128 ; 564126 ; 564127 ;
Abstract
A method of producing acrylamide from acrylonitrile in the presence of a metallic conversion catalyst which comprises contacting an oil-in-water emulsion of acrylonitrile, said water phase being the continuous phase and containing up to 7% acrylonitrile and said oil phase being the dispersed phase and containing the remaining acrylonitrile to be converted to acrylamide, whereby a substantial portion of the acrylonitrile is converted to acrylamide which remains in the aqueous phase of the oil-in-water emulsion, and then an additional low HLB emulsifier is added to invert the oil-in-water emulsion to a water-in-oil emulsion containing acrylamide.