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:
Feb. 14, 1978
Filed:
Nov. 08, 1976
Alvin F Beale, Jr, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A process for the production of metallic magnesium wherein a molten salt bath containing sodium chloride, magnesium chloride, potassium chloride, calcium chloride and magnesium fluoride is electrolytically decomposed with a cathode and an anode and wherein there is added periodically inorganic salts of molybdenum or tungsten, metallic molybdenum or tungsten, or mixtures thereof in sufficient amounts to coat the cathode surface with molybdenum or tungsten and thereby increase the recovery of magnesium. The advantage of the process is that less sludge is formed and of the sludge that is formed there is less magnesium entrapped therein. A further advantage is that the magnesium is produced with a higher cell efficiency.