泵矿山族金属是怎么回收的?
    铂族金属矿石品位很低，一般难以直接提取,往往需要经过处理,逐步富集,获得其精矿后再进一步分离、提纯而得到纯金属。因此，富集是铂族金属提取的关键，而且铂族金属的提取过程通常是一个以其他金属为主要回收对象的复杂工艺过程。
(1)铂族金属的选矿富集
    铂族金属的选矿富集过程与金银矿的选矿富集过程相似，目前

对铂族金属的选矿富集通常采用的方法是浮选、重选和它们的联合工艺。
(2)铂族金属的火法富集
    铂族金属易与其他各种过渡金属形成合金或金属间互化物,且具有亲硫而不亲氧性质(锇、钉易于氧化挥发除外)，因而可以经过高温化学反应，使富集着铂族金属的产品与其他物质分离。常用的方法有熔炼和挥发两种。
(3)铂族金属的浸出富集
    浸出是富集提取铂族金属的常用方法,其要点是将非贵金属组分溶解进入浸出液，与富集了贵金属的浸出渣分离;或使贵金属进入溶液，与难溶物(如硅酸盐、一氧化硅等氧化物)分离。为提高浸出效率,有时需要增加焙烧或其他预处理工序及加压浸出等强化手段。
(4)含铂族金属硫化铜镍矿的富集提取

1936年前,铂族金属主要从砂矿中提取，工艺简单。现代铂族金属主要从含铂硫化铜镍矿中提取,其提取存在多种工艺。
    ①含铂硫化铜镍矿的熔炼富集。
    ②铜镍高锍的处理。铜镍高锍是镍、铜硫化物的共熔体，早期应用“顶底法”，即用硫化钠处理高锍，使液态硫化铜熔入硫化钠顶层，而较重的硫化镍留在底层,冷却后，两层可撞击分开，铂族金属富集在底层，从电解阳极泥中回收;后期提取过程中发展成将高锍通过磨浮、选择性浸出、加压浸出等方法进行处理、富集。渣浆泵厂家
    ③电解富集。电解是贵金属的传统富集方法。不仅粗金属、合金，甚至连镇高锍也可以用电解(或电溶)的办法处理，使贵金属富集在阳极泥中。但是贵金属在此方法处理过程中容易发生电解损失，故以提取铂族元素为目的时，电解不是一种较好的方法。

How is pump mine metal recovered?

The grade of PGM ore is very low, so it is difficult to extract directly. It often needs to be treated and enriched step by step to obtain its concentrate and then further separate and purify it to get pure metal. Therefore, enrichment is the key to the extraction of PGMS, and the extraction process of PGMS is usually a complex process with other metals as the main recovery object.

(1) beneficiation and enrichment of PGMS

The beneficiation and enrichment process of platinum group metals is similar to that of gold and silver ores

Flotation, gravity separation and their combined processes are commonly used for the beneficiation and enrichment of platinum group metals.

(2) fire enrichment of platinum group metals

Platinum group metals are easy to form alloys or intermetallics with other transition metals, and they are sulfur friendly but not oxygen friendly (except osmium and nails are easy to oxidize and volatilize), so they can be separated from other substances by high temperature chemical reaction. There are two common methods: smelting and volatilization.

(3) leaching and enrichment of platinum group metals

Leaching is a common method for the enrichment and extraction of platinum group metals. The key point is to dissolve the non precious metal components into the leaching solution and separate them from the leached residue enriched with precious metals, or to let the precious metals into the solution and separate them from the refractory substances (such as silicate, silica and other oxides). In order to improve the leaching efficiency, it is sometimes necessary to increase roasting or other pretreatment processes and pressure leaching and other strengthening means.

(4) enrichment and extraction of copper nickel sulfide ore containing platinum group metals

Before 1936, PGMs were mainly extracted from placers with simple technology. Modern platinum group metals are mainly extracted from copper nickel sulfide ore containing platinum, and there are many extraction processes.

① smelting enrichment of copper nickel sulfide ore containing platinum.

② treatment of copper nickel matte. Copper nickel high matte is the co melt of nickel and copper sulfide. In the early stage, the "top and bottom method" was used, that is, sodium sulfide was used to treat high matte, so that the liquid copper sulfide was melted into the top layer of sodium sulfide, while the heavier nickel sulfide remained in the bottom layer, after cooling, the two layers could be separated by impact, and the platinum group metals were enriched in the bottom layer and recovered from the electrolytic anode mud. In the later stage, the high matte was developed into high matte through grinding flotation and selective leaching And pressure leaching. Slurry pump manufacturer

③ electrolytic enrichment. Electrolysis is the traditional enrichment method of precious metals. Not only crude metals and alloys, but even matte can be treated by electrolysis (or electrolysis) to enrich precious metals in anode slime. However, precious metals are prone to electrolytic loss in this process, so electrolysis is not a good way to extract platinum group elements.