由以上5个条件可知，含金黄铁矿的可浮性与矿浆电位紧密相关。研究发现，当矿浆电位E为一250mV时， 辉铜矿开始上浮，而当En为-50mV时，其浮选回收率可达100%;辉铜矿的浮选回收率和黄药的吸附密度之间有较好的对应关系。而黄铁矿在矿浆电位为50mV时开始上浮，在Eh为320mV时，其回收率可达100%;同辉铜矿一样，黄铁矿的黄药吸附密度与其回收率之间也有一个很好的对应关系，不同之处在于，黄药吸附密度下降，这可能是因为形成了一种称为过黄药的新物质，此外，浮选矿 浆电位增大，与双黄药的形成有关。渣浆泵
What is the relationship between the floatability of gold bearing pyrite and pulp pump potential?
The floatation of pyrite requires the following conditions:
① There are available pyrite oxidation products, which can be produced on coarse particles and have solubility, and can produce acid oxidation conditions:
② One of the other sulfide minerals (such as chalcopyrite and galena) is required to produce induced flotation:
③ In the solution containing Fe, the reduction stage can be formed by adding complexing agent or increasing the pH of pulp, or by these two methods; ④ adding complexing agent, the precipitation of metal hydroxide can be minimized, and the hydrophilic substance on the surface of sulfide mineral can be removed to obtain pure hydrophobic property:
⑤ In the flotation stage, a pulp potential sufficient for oxidation is established.
In addition, when there is no copper ion, the recovery of pyrite and pyrite is relatively low: if these five conditions are met, then the recovery of pyrite can be greatly improved by copper ion; if none of these five conditions is met, then pyrite does not have floatability. For composite ore or actual ore, except for chelating agent and complexing agent, other conditions are satisfied.
According to the above five conditions, the floatability of gold bearing pyrite is closely related to pulp potential. It is found that when the pulp potential E is 250Mv, chalcocite starts to float, and when en is - 50mV, the flotation recovery can reach 100%; there is a good relationship between the flotation recovery of chalcocite and the adsorption density of xanthate. However, pyrite starts to float when the pulp potential is 50mV, and its recovery can reach 100% when EH is 320mv. Like chalcopyrite, there is a good corresponding relationship between the xanthate adsorption density of pyrite and its recovery. The difference is that the xanthate adsorption density decreases, which may be due to the formation of a new substance called peroxyxanthate. In addition, the flotation pulp potential increases It is related to the formation of Dioscorea. Slurry pump
However, when pyrite and chalcocite are mixed, the potential e range of pyrite flotation pulp is 150-150mv. Compared with single chalcocite, the flotation of chalcocite in the mixed ore occurs in the similar pulp potential range, but it has different degrees of inhibition.