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:
Dec. 31, 2019
Filed:
Jul. 30, 2014
Beijing University of Technology, Beijing, CN;
Zuoren Nie, Beijing, CN;
Xiaoli Xi, Beijing, CN;
BEIJING UNIVERSITY OF TECHNOLOGY, Beijing, CN;
Abstract
The present invention provides a process for recycling waste carbide, wherein the waste carbide is directly used as anode and electrolyzed in the molten salt, comprising the following steps: 1) the vacuum dehydrating of the molten salt electrolyte; 2) electrolyzing the waste carbide, which is used as anode, and an inert electrode, which is used as cathode in the molten salt electrolyte with the electrolysis temperature of 350˜1000° C.; 3) separating and collecting the metal powder obtained by electrolysis from molten salt medium. According to the technical solutions of the present invention, tungsten and cobalt ions can be dissolved from the anode material-waste carbide directly into the molten salt medium and deposited on the cathode plate with being driven by the electrolysis voltage, to obtain the metal powder particles. The tungsten, cobalt and other products obtained by electrolysis can be used as carbide materials, high temperature structural materials, weapons materials, photocatalytic materials, etc., and can be applied to the fields of processing production, aerospace, military industry, environment and energy, and the like. This method has a short process, has no solid/liquid/gas waste emissions, and is environment-friendly.