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:
May. 31, 1977
Filed:
Sep. 29, 1975
Applicant:
Inventors:
Ferenc Orban, Budapest, HU;
Maria Orban, Budapest, HU;
Tihamer Pinter, Budapest, HU;
Gyorgy Zsigmond, Budapest, HU;
Peter Siklosi, Budapest, HU;
Karoly Solymar, Budapest, HU;
Pal Toth, Budapest, HU;
Janos Zambo, Budapest, HU;
Assignees:
Aluminiumipari Tervezo Vallalat, Budapest, HU;
Femipari Kutato Intezet, Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423121 ; 423131 ;
Abstract
The present invention provides for an improvement in the Bayer Aluminum manufacturing process wherein the digestion of goethite-containing bauxite is effected in higher yields, at lower temperatures and in a single step by carrying out said digestion in a wet caustic solution containing both calcium oxide and sodium chloride.