B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
361/16
B03D 1/02 (2006.01) B03D 1/001 (2006.01) C01F 5/24 (2006.01)
Patent
CA 1045256
ABSTRACT OF THE DISCLOSURE The present invention provides a reverse flotation method for the removal of contaminants from a magnesite ore which has as a main component magnesium carbonate and as contaminants silica and silicates of iron, aluminum and calcium which method comprises grinding the previously crushed ore to a desired grain size; classifying the pulp so obtained, conditioning said classified pulp in a conditioner,when required adjusting the pH of said pulp to be in the range 6.8 to 7.2 and subjecting said pulp to a flotation by the addition of a selective mixture of cationic collectors in combination with impure kerosene to the pulp during or after the conditioning or both; removing the contaminants and the froth and removing the ore concentrate so obtained in a settled underflow product. Suitably the mixture of cationic collectors is a mixture of a quaternary ammonium compounds and primary amines.
215969
Gambopoulos Theodor
Nestoridis Antony
LandOfFree
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