There is described a proces for the purification of metal oxides which comprises the steps of: (i) roasting a mineral ore in the presence of an alkali; (ii) extracting the desired metal salt produced in step (i); (iii) precipitation of a hydroxide salt; and (iv) converting the hydroxide salt into an appropriate oxide. The process applies to the recovery of alumina, titania and ferric oxide from bauxite and/or red mud.
申请公布号
WO0210068(A1)
申请公布日期
2002.02.07
申请号
WO2001GB03370
申请日期
2001.07.30
申请人
UNIVERSITY OF LEEDS;JHA, ANIMESH;ANTONY, MALPAN, PAILO;THATHAVADKAR, VILAS, D.
发明人
JHA, ANIMESH;ANTONY, MALPAN, PAILO;THATHAVADKAR, VILAS, D.