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:
Oct. 11, 1983
Filed:
Aug. 04, 1982
Applicant:
Inventors:
Assignee:
Chemische Werke Huls, AG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423462 ; 423493 ; 570241 ; 570261 ; 260694 ; 564497 ;
Abstract
Copper(II) chloride is prepared from copper(II) oxychloride in a nonpolar solvent, preferably during oxychlorination. As the source of hydrogen chloride, the hydrochlorides of certain tertiary amines having 12-40 carbon atoms in total are utilized. The amine contains at most one N-methyl group and its dissociation constant K.sub.a of the equilibrium reaction