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:
Jan. 08, 2002
Filed:
Jun. 23, 1999
Applicant:
Inventors:
Michael Philip Bohrer, Lebanon, NJ (US);
Po-Yen Lu, Mendham, NJ (US);
Lawrence Seibles, Piscataway, NJ (US);
Assignee:
Lucent Technologies, Inc., Murray Hill, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 1/700 ; C01G 1/704 ; C22B 4/100 ;
U.S. Cl.
CPC ...
C01G 1/700 ; C01G 1/704 ; C22B 4/100 ;
Abstract
The invention relates to a system and method for the recovery of germanium from the Modified Chemical Vapor Deposition (MCVD) processing wastes by chemical conversion and recovery of germanium from the solid cake product. In the present method, the direct reaction of gaseous hydrogen chloride with the recovered materials effects the rapid and complete chlorination of the germanates, yielding germanium tetrachloride. The germanium tetrachloride product is completely volatilized and removed from the mixture during the exothermic process.