锑金 (砷)矿的浮选分渣浆泵离方法是什么?
    在锑金(砷) 硫化矿石中，主要目的矿物有辉锑矿、自然金、黄铁矿、毒砂等，而黄铁矿、毒砂是主要载金矿物，有的辉锑矿也含金。毒砂含砷，有时黄铁矿也含砷。因此，该类型矿石含砷较高。
    该类型矿石中的锑金(砷)分离，除了粗粒自然金用重选回收外，大部分是辉锑矿与黄铁矿、毒砂等矿物的分离。浮选分离锑金(砷)矿物的工艺流程在实践中有优先浮选及混合-优先浮选。浮选分离的方法有下列几种:氢氧化钠法;硫化钠-氢氧化钠或碳酸钠法;氧化剂法;丁铵黑药法;氰化物法。因氰化物有毒，影响环保，并溶解金、银，该法在国内目前应用较少。

氢氧化钠法:采用优先浮选工艺流程，在球磨机中加入氢氧化钠，在强碱性矿浆中磨矿来抑制辉锑矿.用硫酸铜来活化黄铁矿及毒砂，再将矿浆pH调到8~9，加入捕收剂及起泡剂，浮选出黄铁矿及毒砂，得金(砷)精矿，其尾矿加入铅盐或铜盐活化辉锑矿，再加入捕收剂及起泡剂进行浮选，得锑精矿。
    硫化钠-氢氧化钠或碳酸钠法:在磨矿过程中加氢氧化钠及碳酸钠，然后加醋酸铅、硫酸铜、丁基黄药及硫酸进行混合浮选得锑金混合精矿与废弃尾矿。混合精矿经再磨，磨矿时加氢氧化钠、丁基黄药、硫酸铜并充气几分钟，然后进行浮选分离，得金粗精矿，槽中产物就是锑精矿。再将金粗精矿采用硫化钠-氢氧化钠法来抑制辉锑矿进行精选，得到金精矿及低品位锑精矿。
    氧化剂法:在混合精矿浮选分离前，加入氧化剂漂白粉(CaOCl2)或高锰酸钾(KMnO:), 矿浆固:液为1 : 3,搅拌时间为1min,然后加入醋酸铅100g/t,用黄药为捕收剂来浮选辉锑矿。其尾矿为含金黄铁矿精矿。渣浆泵厂家

丁铵黑药法:利用丁铵黑药对辉锦矿捕收能力较强、具有较好的选择性，而对毒砂及黄铁矿捕收能力弱的特点进行锑金(砷)浮选分离的一种方法。先在磨矿-分级回路中用捕金器或重选即时选出粗粒单体自然金。然后采用优先浮选流程,用铅盐作辉锑矿的活化剂，以硫酸来调节矿浆的pH,丁铵黑药为捕收剂，松醇油为起泡剂，在自然pH或弱酸性矿浆中浮选出辉锑矿得锑精矿。浮选尾矿就是含金毒砂(黄铁矿)粗精矿(因丁铵黑药对毒砂捕收能力弱)。将其尾矿加入丁基黄药，必要时加硫酸铜活化，再加起泡剂浮选出含金毒砂精矿，并从中提取金。锑精矿中的金，在冶炼锑的过程中进行综合回收。

What is the separation method of flotation slag and slurry of antimony gold (arsenic) ore?

In antimony gold (arsenic) sulfide ores, the main target minerals are stibnite, natural gold, pyrite, arsenopyrite, etc., while pyrite and arsenopyrite are the main gold bearing minerals, and some stibnite also contains gold. Arsenopyrite contains arsenic, and sometimes pyrite also contains arsenic. Therefore, this type of ore has high arsenic content.

In addition to the recovery of coarse natural gold by gravity separation, most of the antimony (arsenic) in this type of ore is the separation of stibnite from pyrite, arsenopyrite and other minerals. The technological process of flotation separation of antimony gold (arsenic) minerals has priority flotation and mixed priority flotation in practice. The methods of flotation separation are as follows: sodium hydroxide method; sodium sulfide sodium hydroxide or sodium carbonate method; oxidant method; black agent method of butylammonium; cyanide method. Due to the toxicity of cyanide, the influence of environmental protection, and the dissolution of gold and silver, this method is rarely used in China at present.

Sodium hydroxide method: priority flotation process is adopted. Sodium hydroxide is added to the ball mill to grind in the strong alkaline pulp to inhibit stibnite. Copper sulfate is used to activate pyrite and arsenopyrite, and then the pulp pH is adjusted to 8-9. Collector and frother are added to flotation to produce pyrite and arsenopyrite, and gold (arsenic) concentrate is obtained. Lead salt or copper salt is added to tailings to activate stibnite, then collector and arsenopyrite are added Antimony concentrate is obtained by flotation with frother.

Sodium sulfide sodium hydroxide or sodium carbonate method: add sodium hydroxide and sodium carbonate in the grinding process, and then add lead acetate, copper sulfate, butyl xanthate and sulfuric acid for mixed flotation to obtain antimony gold mixed concentrate and waste tailings. After regrinding, sodium hydroxide, butyl xanthate and copper sulfate are added to the mixed concentrate and inflated for a few minutes, then flotation separation is carried out to obtain the coarse gold concentrate. The product in the tank is antimony concentrate. After that, the method of sodium sulfide sodium hydroxide was used to restrain stibnite from being cleaned to get gold concentrate and low-grade stibnite concentrate.

Oxidant method: before flotation separation of mixed concentrate, add oxidant bleaching powder (caocl2) or potassium permanganate (KMnO:), pulp solid: liquid: 1:3, stirring time: 1min, then add lead acetate 100g / T, use xanthate as collector to flotation stibnite. Its tailings are gold bearing pyrite concentrate. Slurry pump manufacturer

Black medicine method of butylammonium: a method of flotation separation of antimony and gold (arsenic) by using black medicine of butylammonium with strong collection capacity and good selectivity for Huijin mine, but weak collection capacity for arsenopyrite and pyrite. First, the coarse-grained natural gold is selected in grinding grading circuit by using gold catcher or gravity separation. Then, the antimony concentrate from stibnite is obtained by using lead salt as activator, sulfuric acid as pH regulator, ammonium butyrate as collector and terpineol oil as frother in natural pH or weak acid pulp. The flotation tailings are the coarse concentrate of arsenopyrite (Pyrite) containing gold (the ability of collecting arsenopyrite is weak due to the black medicine of butylammonium). The tailings are added with butyl xanthate, activated with copper sulfate if necessary, and then floatated with foaming agent to produce gold bearing arsenopyrite concentrate, from which gold is extracted. The gold in antimony concentrate is comprehensively recovered in the process of smelting antimony.