What can be used as an activator in mineral processing reagents
In flotation process to increase the effect of mineral flotability call activation, is used to change the composition of mineral surface, promote collector agents with the effects of the mineral surface is called as activator. Activation can be roughly divided into: 1, the spontaneous activation; 2, for the first activation; 3, resurrection; 4, sulfuration.
(a) the spontaneous activation: processing non-ferrous metal ore, mineral surface in the process of grinding the effect of the soluble salt ions and some spontaneous, sphalerite and sulfide copper mineral symbiosis, for example, in the oxidation of the mined ore after total sulfide copper oxidized into a small amount of copper sulfate, Cu2 + ions in the pulp and sphalerite surface activation, to cause separation of copper and zinc is difficult, need to add lime and sodium carbonate to adjust some agent to precipitate may cause activation "unavoidably ion".
(2) for the first activation, it is to point to in order to choose a certain minerals to the first to add a activator to activate. When pyrite oxidation heavier, in before the pyrite oxidation film on the surface of the sulfuric acid solution to pyrite, show fresh surface, to facilitate flotation.
(3) the resurrection function refers to the original been inhibition of some minerals, such as cyanide inhibits sphalerite, can add copper sulfate of the resurrection.
(4) sulfuration refers to metal oxide ore first treated with sodium sulfide, in oxidized ore generated on the surface of a layer of metal sulfide mineral membrane, and then using xanthate flotation.
Are used as activator of the mineral processing reagents:
Sulfate, sulfite, sodium sulfide, copper sulfate, oxalic acid, lime, sulfur dioxide, lead nitrate, sodium carbonate, sodium hydroxide, lead salt, barium salt, etc.