Inventors:
James K. Kindig - Arvada CO
Ronald L. Turner - Golden CO
Assignee:
Hazen Research, Inc. - Golden CO
International Classification:
C22B 106
Abstract:
In a process for beneficiating one or more mineral values of a metal oxide ore selected from the group consisting of bauxite, taconite, chrysocolla, apatite, titanium oxides and the metal oxides of Groups IIIB, IVB, VB, VIB, VIIB, VIIIB, IB, IIB and IVA by treating the ore with a metal containing compound, preferably iron carbonyl, under conditions such as to selectively enhance the magnetic susceptibility of the mineral values to the exclusion of the gangue in order to permit a separation between the values and gangue, the improvement comprising pretreating the metal oxide ore by heating it to a temperature of at least about 80. degree. C. for a time period of at least about 0. 1 hours.