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在本文的第一部分,根据锑矿物的性质报道了锑选矿的经验,本文第二半部分评论了有关这些锑矿物分选的技术情况,并总结了选矿厂的生产经验。锑矿物的密度大,有被磨成矿泥的趋势(莫氏硬度为2.5),这样,在选矿流程中就有可能首先采用重选,这使人很感兴趣。在某些工艺配置中已经出现了重选,毫无疑问,在能够采用现代化重选设备的地方,重选会得到更多的应用。从销售考虑,在某些情况下,分离出砷黄铁矿在工艺中有着重要意义。为了这个目的研制了特殊的精选工艺,但更要注意第一次锑浮选的选择性。由于金价的上涨,某些锑矿物其实应当被看作是以锑为副产品的金矿石。在这种情况下,重选之后,显然应进行氰化物浸出,这里最合理的方法,首先应当是在自然pH值下,分选出锑,然后用氰化物浸出金。辉锑矿选矿的浮选回路设计,一般是很简单的,通常粗选、扫选和两次精选就能生产出品位高于60%Sb的精矿。循环负荷返回到粗选回路的中部,提供一个能获得高品位精矿、生产能力大,具有吸引力的方法。在复杂的硫化矿矿石中,选择抑制锑矿物的方法要根据主要杂质属于什么种类的矿物而定,在黄铁矿优先的环境中,有效地抑制含铁锑矿物应当是可能的。
In the first part of this paper, the experience of antimony beneficiation is reported on the basis of the properties of antimony minerals. The second half of this paper reviews the technical conditions concerning the separation of these antimony minerals and summarizes the production experience of the concentrator. Antimony minerals are dense and have a tendency to be ground to a slime (Mohs hardness of 2.5) so that it is possible to re-select them first in the beneficiation process, which is of interest. There have been re-elevations in some process configurations and there is no doubt that re-selection will get more use where modern re-selection equipment is available. From sales considerations, separation of arsenopyrite from the process is of great importance in some cases. For this purpose has developed a special selection process, but more attention to the first choice of antimony flotation. Due to the rising price of gold, some antimony minerals should in fact be regarded as antimony as a by-product of gold ore. In this case, it is clear that after the re-election cyanide leaching, the most reasonable method here, should first be at a natural pH, the separation of antimony, and then leaching gold with cyanide. The flotation circuit design for stibnite beneficiation is generally very straightforward. Generally, roughing, sweeping and double picks produce concentrates with a grade higher than 60% Sb. The return of the cyclic load to the middle of the rougher loop provides an attractive, productive way to achieve high-grade concentrate. In complex sulphide ore ores, the method of choice for inhibiting antimony minerals depends on what kind of minerals the major impurities belong to, and it should be possible to effectively suppress iron-bearing antimony minerals in the pyrite-preferred environment.