Process for treating cassiterite ore

Details Process for treating cassiterite ore Process for treating cassiterite ore

B - Operations, Transporting

03

D

361/11

B03D 1/02 (2006.01) B03D 1/01 (2006.01) B03D 1/012 (2006.01) B03D 1/014 (2006.01)

Patent

CA 1204531

ABSTRACT OF THE DISCLOSURE The present invention provides a process for the pre- liminary flotation of a cassiterite ore in order to recover impurities selected from the group consisting of silicates, silicoaluminates, fluorite, iron oxides and carbonates in the float and provide an improvement in selectivity in the course of subsequent concentrations of said ore by anionic flotation, comprising the step of effecting flotation by means of an amphoteric collector of the formula: R-(NH-CH2-CH2)n-NH-CH2-H2-COOH in which: R is CH3-(CH2)m-1 or CH3-(CH2)m-1 OCH2CH2CH2-, m is 12 to 22, and n is 0, 1, 2 or 3.

415090

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