Abstract: Process for post-treating a chlorinated ilmenite ore which has undergone a selective chlorination treatment in the presence of a solid carbonaceous material, which comprises subjecting the chlorinated ilmenite ore to a magnetic separation in a high magnetic field to separate it into a magnetic portion and non-magnetic portion, subjecting the residual of the solid carbonaceous material concentrated in the non-magnetic portion to flotation, using a frothing agent such as methylisobutylcarbinol and a collector for a sulfide ore such as xanthate, Aerofloat or the like, and washing a gangue value partially liberated from the ilmenite ore with water or suspending it in water in said flotation to separate these materials respectively thereby to produce an artificial rutile with a TiO.sub.2 content of at least 95% as a final product.

Abstract: Process for the flotation of anode slime from copper electrolysis comprising subjecting the anode slime, as a preliminary treatment, to attrition treatment in combination with a copper leaching treatment in a medium of an acid solution. The floated material obtained from the flotation is continuously subjected to three processes of roasting, melting and cupellation in a rotary furnace lined with refractory bricks for recovery of good quality silver anode.