Process for beneficiating oxide ores
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United States of America Patent
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-
Jun 3, 1980
Grant Date -
N/A
app pub date -
Oct 10, 1978
filing date -
Oct 10, 1978
priority date (Note) -
Expired
status (Latency Note)
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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.
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