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:
Nov. 27, 1984
Filed:
Sep. 30, 1982
Issay M Dimitrov, Sofia, BG;
Atanas P Boychev, Sofia, BG;
Vesselin L Ralchev, Sofia, BG;
Georgi Y Kostov, Sofia, BG;
ISO 'Metalurgkomplekt', Sofia, BG;
Abstract
Method of and apparatus for leaching copper from slags by the use of a device comprising at least two cells separated by partitions and connected to each other by means of through-holes provided at the bottom part of the partitions, a slag charging hole, a copper matte charging hole, a slag discharge hole, a copper matte discharge hole, and a heating appliance, said partitions being alternately higher and lower, the height of the through-holes through the higher partitions increasing toward the slag discharge holes. Said method includes reduction, sulphidization, and copper matte rinsing of the slag, the copper matte rinsing of the slag being accomplished by its successive movement from one cell into another through a copper matte layer in alternately downward and upwardly directed streams. The passage of the slag through the higher partitions is accomplished through a copper matte sealing formed at the through-holes, and the passage of the slag past the lower partitions is accomplished over the upper edges of said lower partitions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile