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含金黄铁矿的可浮性与矿浆渣浆泵电位的关系是

含金黄铁矿的可浮性与矿浆渣浆泵电位的关系是

作者:admin    来源:未知    发布时间:2020-01-02 15:49    浏览量:
含金黄铁矿的可浮性与矿浆渣浆泵电位的关系是什么?
黄铁矿的浮游需要以下条件:
①有可供利用的黄铁矿氧化产物,黄铁矿的氧化产物可由粗粒上产生,并且具有可溶性,可以产生酸性氧化条件:
    ②需要有其他硫化矿物(诸如黄铜矿和方铅矿)中的一 种存在,以便产生诱导浮选现象:
    ③在含有Fe的溶液中,可以通过添加络合剂或者提高矿浆的pH,或者通过这两种方法来形成还原阶段;④添加络合剂,可以使金属氢氧化物的沉淀减至最小限度,使硫化矿物表面的亲水性物质除去而获得纯疏水特性:
    ⑤在浮选阶段建立起足以发生氧化作用的矿浆电位。
    此外,无铜离子存在时,黄铁和的回收率较低:如果这5个条件得到满足的话,则铜离子可以大幅度地提高黄铁矿的回收率:如果这5个条件中的任何一个都不满足的话,则黄铁矿不具有可浮性。对于复合矿石或者实际矿石而言,除螯合剂、络合剂外,其他几个条件都是满足的。
    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
    但当黄铁矿和辉铜矿混合存在时,黄铁矿的上浮矿浆电位E范围为一150~150mV,混合矿中辉铜矿的上浮与单一的辉铜矿相比,发生在相似的矿浆电位范围内,但是有不同程度的抑制。

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.

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