What is the method of separation of gold ore containing graphite or carbonaceous shale by slurry pump?
The process of flotation and gold extraction is complicated by the presence of graphite or carbonaceous shale in gold ore. It is estimated that this kind of ore accounts for about 4% of the world's gold deposits, and it is a refractory gold deposit. When graphite enters the gold concentrate, it will deposit gold from the cyanide solution and lose it to the cyanide tailings, just like the precipitant of precious metals. If graphite exists as a single particle in the ore and does not contain valuable gold, it can be removed by adding a foaming agent. If graphite exists as a very fine particle in the whole ore, it will bring considerable difficulties to separation and cyanidation.
What kind of silver bearing ore is suitable for recovery by flotation?
When silver minerals are mainly composed of argentite and natural silver, flotation and cyanidation can be used; for minerals containing a large number of deep red silver ore, selenite, selenite and other minerals that are difficult to cyanidate, flotation can only be used: for ores with high content of copper, zinc and lead sulfide, flotation can only be used.
27 what are the conditions for the flotation of platinum group elements? Slurry pump manufacturer
Flotation is mainly applied to the separation of platinum sulfide ore. In many cases, platinum bearing minerals can be recovered by flotation, among which the natural minerals containing iron and copper (iron and copper platinum ores) are the most difficult to recover. Sometimes, in the coarse tailings of copper nickel flotation, sulphur, nickel, platinum, palladium, Ti Bahua, arsenic and platinum ores and some other minerals can be found. In order to recover these platinum bearing minerals, flotation tailings from copper and nickel coarse separation should be floatation to make more effective conditions for platinum minerals to enter the foam products. These conditions are mainly: adding chemicals and increasing pulp temperature. Platinum minerals can be recovered from flotation tailings by gravity separation (chute, jig, etc.).