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:
Mar. 22, 1988
Filed:
Nov. 17, 1986
Applicant:
Inventors:
Klaus Kobele, Dietzenbach, DE;
Gerhard Gotz, Voerde, DE;
Manfred Beckmann, Neu-Isenburg, DE;
Ernst Rode, Frankfurt am Main, DE;
Friedrich Berger, Neuberg, DE;
Assignees:
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Uraphos Chemie GmbH, Berlin, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
75 24 ; 75 9 / ; 423131 ;
Abstract
A method of recovering a metallic aluminum from an aluminum-containing slag of an aluminum smelting process. In this method, the slag is crushed a number of times with each crushing product being separated by a screening off removing the metallic aluminum before the next crushing stage. Water-soluble components are then removed from the slag by leaching and the leaching solution is evaporated to enable recovery of these components.