渣浆泵铂族金属工业要求是什么?

国际市场上的商品铂族金属一般为金属锭或海绵状、棒状、片状，也有条带状、丝状或箔状。商品级的产品含铂族元素不得低于99. 8%，其中含铂和钯必须大于99. 5%。用于实验器皿或电接头的铂族金属原料要求纯度大于99. 9%，用于热电偶和高温计者纯度须在99.999%以上。
    目前我国已在选冶过程中综合回收与铜镍硫化物伴生的铂族金属。金川的铂族元素矿物有数十种。铂矿物和含铂的矿物有砷铂矿、自然铂与金属互化物(铂金矿、铂金钯矿)等，钯矿物和含钯的矿物有钯金矿、单斜铋钯矿、铋碲钯矿与含钯自然铋等。砷铂矿与金属互化物占铂矿物的90%以上。砷铂矿粒度0. 042~ 1mm,以0.1~0.3mm最多见。以矿物形态存在的铂在铜镍富矿中占92%~99%，在贫矿中占83%~94%。钯也主要以矿物的形式存在。铑、铱、锇、钌主要存在于磁黄铁矿、镍黄铁矿、紫硫镍铁矿与黄铜矿中(为原矿的10余倍)。
    铜镍富矿的选矿流程采用一段粗选直接产出部分合格精矿，二、三段粗选精矿集中精选的流程，通过合理球磨,采用合适的旋流器分级，使小于0.074mm的粒度在一、二、三段分别达到55%、70%和80%，提高了矿物单体解离度。Ni回收率稳定在89%~90%，Cu回收率82%~85%，Pt、Pd回收率达80%以上，富集比(3~4): 1。Ru、Rh、Os、Ir的回收率近70%。
    贫矿石采用另一套流程， 回收率: Cu41%、Ni55%以上， 但铂族金属的回收率不高，除铂回收率达70%外，其余回收率均不足50%。渣浆泵厂家
    铜镍混合精矿用火法熔炼，用转炉吹炼得到高锍，使贵金属在熔炼阶段被金属相捕集。当高锍中铜镍比为0.3: 1、合金产率为10%时，从中可回收95%以上的贵金属。合金中的贵金属含量比高锍中高10倍，合金经处理后得到更富的二次铜镍合金，其中铂族金属与金含量可达2500g/t。二次合金经盐酸浸出镍，控制电位氯化浸出铜与镍，经浓硫酸浸煮除贱金属和四氯乙希脱硫，得到铂钯12%左右的贵金属精矿，再进一步分离提纯。

What are the requirements of the slurry pump platinum group metal industry?

The commodity platinum group metals on the international market are generally ingots, sponges, bars and flakes, and also strip, filiform or foil. Products of commercial grade shall contain at least 99.8% of platinum group elements, of which platinum and palladium shall contain at least 99.5%. The purity of platinum group metals used in experimental utensils or electrical joints is required to be more than 99.9%, and that of thermocouples and pyrometers is required to be more than 99.999%.

At present, platinum group metals associated with copper nickel sulfide have been recovered comprehensively in the process of beneficiation and smelting in China. There are dozens of PGE minerals in Jinchuan. Platinum minerals and platinum bearing minerals include arsenic platinum ore, natural platinum and metal compounds (platinum gold, platinum palladium ore), palladium minerals and palladium bearing minerals include palladium gold ore, monoclinic bismuth palladium ore, bismuth tellurium palladium ore and palladium bearing natural bismuth, etc. More than 90% of the platinum minerals are composed of arsenopyrite and metal complexes. The particle size of arsenopyrite is 0.042-1mm, and the most common is 0.1-0.3mm. Platinum in mineral form accounts for 92% ~ 99% of copper nickel rich ore and 83% ~ 94% of poor ore. Palladium also exists mainly in the form of minerals. Rhodium, iridium, osmium and ruthenium are mainly found in pyrrhotite, pentlandite, pyrite and chalcopyrite (more than 10 times of the original ore).

In the beneficiation process of Cu Ni rich ore, the first stage roughing is used to directly produce part of qualified concentrate, and the second and third stage roughing concentrate are concentrated. Through reasonable ball milling and proper cyclone classification, the particle size of less than 0.074mm can reach 55%, 70% and 80% respectively in the first, second and third stages, which improves the mineral monomer dissociation degree. The recovery of Ni is stable at 89% ~ 90%, the recovery of Cu is 82% ~ 85%, the recovery of Pt and PD is over 80%, and the enrichment ratio is (3 ~ 4): 1. The recoveries of Ru, Rh, OS, IR are nearly 70%.

The recovery rate of lean ore is more than cu41% and ni55%, but the recovery rate of PGMS is not high. Except for the platinum recovery rate of 70%, the other recovery rates are less than 50%. Slurry pump manufacturer

The mixed concentrate of copper and nickel is smelted by fire method and blown by converter to obtain high matte, which makes precious metals trapped by metal phase in smelting stage. When the ratio of copper to nickel is 0.3:1 and the alloy yield is 10%, more than 95% of the precious metals can be recovered. The content of precious metals in the alloy is 10 times higher than that in high matte, and the alloy is treated to get a richer secondary Cu Ni alloy, in which the platinum group metals and gold content can reach 2500 g / T. The secondary alloy leached nickel by hydrochloric acid, copper and nickel were leached by potentiometric chlorination, base metal and tetrachloroethylene desulfuration were removed by concentrated sulfuric acid leaching, and precious metal concentrate of about 12% Pt Pd was obtained, and then further separation and purification were carried out.