Abstract: There are provided processes for extracting aluminum ions from aluminous ores and for preparing alumina. Such processes can be used with various types of aluminous ores such as aluminous ores comprising various types of metals such as Fe, K, Mg, Na, Ca, Mn, Ba, Zn, Li, Sr, V, Ni, Cr, Pb, Cu, Co, Sb, As, B, Sn, Be, Mo, or mixtures thereof.
Type:
Grant
Filed:
May 15, 2012
Date of Patent:
December 25, 2012
Assignee:
Orsite Aluminae Inc.
Inventors:
Richard Boudreault, Serge Alex, Fabienne Biasotto