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:
Apr. 15, 1986
Filed:
Dec. 24, 1984
Antonio C Pastor, Santa Monica, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
An improvement of the method for preparing cupric ion-free cuprous chloride powder in which copper metal is added to a highly acidified solution of cupric chloride to reduce the cupric ions to cuprous ions and oxidize the copper metal to cuprous ions. The improvement involves applying an electromotive force to the solution by immersing interconnected copper and platinum electrodes in the solution. The electromotive force is applied only after the reduction of cupric ions is near completion. The electromotive force is applied for a sufficient time to insure essentially complete reduction of cupric ions in the solution. Cuprous chloride is then separated from the cupric ion-free solution by evaporation and isolated by conventional techniques to provide an improved cuprous chloride powder product which is essentially free of cupric ions. The electromotive force is also applied during the evaporation of the acidified solution to prevent possible cupric ion formation. Removal of anion impurities from the cupric ion-free cuprous chloride powder is also disclosed.