公开(公告)号：JP2001058823A

公开(公告)日：2001-03-06

申请号：JP2000189116

申请日：2000-06-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOHRER MICHAEL P ,  PO-YEN LU ,  SEIBLES LAWRENCE

IPC: B01J19/00 ,  C01B9/02 ,  C01G17/04 ,  C22B5/12 ,  C22B7/00 ,  C22B41/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for recovering germanium from modified chemical vapor deposition(MCVD) processing wastes. SOLUTION: The system and method comprise recovering germanium from MCVD processing wastes by carrying out a chemical conversion from a solid cake product. In the method, rapid and complete chlorination of a germasium salt is conducted by direct reaction of hydrogen chloride gas with the MCVD wastes (filter cake) to produce germanium tetrachloride. The germanium tetrachloride product is completely volatilized and removed from the mixture during the exothermic reactional process. The GeCl4 product is then recovered by a cryogenic method.

公开(公告)号：DE60019024T2

公开(公告)日：2006-01-19

申请号：DE60019024

申请日：2000-06-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOHRER MICHAEL PHILIP ,  PO-YEN LU MENDHAM ,  SEIBLES LAWRENCE

IPC: B01J19/00 ,  C01B9/02 ,  C01G17/04 ,  C22B5/12 ,  C22B7/00 ,  C22B41/00

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.

公开(公告)号：DE60019024D1

公开(公告)日：2005-05-04

申请号：DE60019024

申请日：2000-06-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOHRER MICHAEL PHILIP ,  PO-YEN LU MENDHAM ,  SEIBLES LAWRENCE

IPC: B01J19/00 ,  C01B9/02 ,  C01G17/04 ,  C22B5/12 ,  C22B7/00 ,  C22B41/00

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.