First, the floatability of the main Cuprous Chloride mi […]
First, the floatability of the main Cuprous Chloride minerals
The most common Cuprous Chloride minerals are malachite and azurite, followed by chrysocolla and cuprite, and sometimes copper sulfate and other soluble salts.
(1)Malachite: After pre-vulcanization, this Cuprous Chloride mineral can be floated by using a flotation sulfide ore collector (such as xanthate); without pre-vulcanization, it can be used not less than 5-6 A yellow xanthate is floated at high dosages.
Malachite can also be captured by fatty acids (such as oleic acid, palmitic acid, etc.) and their soaps. However, when such a collector is used, the carbonate gangue (such as calcite, dolomite, etc.) in the ore has similar buoyancy to the copper mineral, and thus the selectivity of the flotation process is poor. Therefore, such collectors are only suitable for the flotation of Cuprous Chloride ore containing silicate gangue.
Malachite can also be floated with long-chain primary amines, which require activation with sodium sulfide.
(2)Azurite: The flotation conditions are basically the same as those of malachite. The only difference is that when floating with fat and its soap, it is better than the malachite floatation. When using flotation flotation, it needs to have a longer action time with the medicament.
(3)Chrysocolla: This type of Cuprous Chloride mineral has poor floatability. The main reason is that they are colloidal minerals with very unstable composition and production. The surface of the colloidal mineral is very hydrophilic. The collector adsorption membrane can only be formed in the pores of the mineral surface, and the adhesion is not strong. The flotation behavior is also significantly affected by the pH value, and the pH value is difficult to control so strictly in industrial production.
(4)Water cholesteric: This is a mineral that is slightly soluble in water. It is difficult to float and is generally lost in tailings.
(5)Cholesterol: This mineral is a soluble mineral that is easily soluble in the slurry during flotation. Due to the dissolution of this mineral, the concentration of copper ions in the slurry is increased, and the selectivity of the flotation process is also destroyed. Consumption.