C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/151
C22B 34/12 (2006.01) C01G 49/08 (2006.01)
Patent
CA 1118213
ABSTRACT OF THE DISCLOSURE: Invention Patent of "PROCESS TO OBTAIN ANATASE MECHANICAL CONCENTRATES", applicable in the chlorine process to obtain pigments and metallic titanium, which comprehends the reduction of the anathase ore to dimensions inferior to 125mm; disaggregation in water; classification of the suspen- sion; and elimination of slimes and silicates; grinding of the deslimed fraction and low intensity magnetic separation; grinding of the non-magnetic fraction to a value inferior to 32 mesh; calcining and slight reduction to turn the limonite and the hematite into magnetite and elimination of the magnetite in low intensity magnetic separator; and electro- static separation of the non-magnetic fraction to obtain, as conductor, a final product which is rich in anatase and has a low grade of impurities.
320521
Companhia Vale Do Rio Doce
Robic Robic & Associes/associates
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