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:
Jan. 30, 1996
Filed:
Dec. 30, 1991
Applicant:
Inventors:
Graham J Hutchin, Osmotherley, GB;
Themistoclis Themistocleous, Bryanston, ZA;
Richard G Copperthwaite, Johannesburg, ZA;
Assignee:
Zeofuels Research (Proprietary) Limited, Transvaal, ZA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564479 ; 564463 ;
Abstract
A modified natural clinoptilolite, produced by treating a natural clinoptilolite with a suitable mineral acid or with a suitable alkali and then with a suitable mineral acid, is used as a catalyst in a process for the conversion of methanol and ammonia to give a product containing at least 50% by weight of monomethylamine.