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:
Oct. 18, 1983
Filed:
Aug. 23, 1982
Applicant:
Inventors:
Tsviatko S Ganev, Uppsala, SE;
Mats A Jansson, Taby, SE;
Assignee:
Telefonaktiebolaget L M Ericsson, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 1 / ; 75 63 ; 75 84 ;
Abstract
The invention relates to a method of purifying indium from silicon by baking an indium melt at a predetermined baking temperature in a crucible in a quartz container through which hydrogen gas having a predetermined water content, is flowed. According to the invention the quartz container is kept during the baking at a predetermined temperature that is lower than the baking temperature, and the surface skin of the melt is broken up at least once during the baking.