公开(公告)号：EP2139814A1

公开(公告)日：2010-01-06

申请号：EP08728434.5

申请日：2008-01-29

申请人： Millennium Inorganic Chemicals, Inc.

发明人： JHA, Animesh ,  KUMARI, Ephraim Jeya ,  LAHIRI, Abhishek

IPC分类号： C01G23/047

CPC分类号： C01G23/047 ,  C01P2006/80 ,  C22B1/02 ,  C22B34/1209 ,  C22B34/1213 ,  C22B34/1245

摘要： This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium. sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.