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:
Jun. 29, 1976
Filed:
Sep. 06, 1974
Donald R Spink, Waterloo, CA;
Amax Speciality Metal Corporation, Greenwich, CT (US);
Abstract
A process is provided for separating zirconium and hafnium tetrachlorides by the direct distillation from their solution in an eutectic mixture of sodium and potassium chlorides. Hafnium tetrachloride and zirconium tetrachloride are provided in adequate purity for direct introduction into reduction units for the production of the respective metals by virtue of controlled ratios of the salt eutectic solvent to the hafnium and zirconium tetrachlorides and by provision of a reflux of hafnium with added increments of the eutectic solvent salt mixture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile