[Nickel ore beneficiation] A complete collection of nickel sulfide ore beneficiation processes!

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Nickel has good ductility, corrosion resistance and magnetism. As a kind of metal mineral, it is used in steel, electroplating, aerospace materials, military materials and battery industries. The minerals from which nickel resources are currently available are mostly nickel oxide and nickel sulfide. Nickel sulfide (mostly copper-nickel sulfide ore) has relatively simple ore properties and its beneficiation method is relatively simple, mainly flotation, including There are several types of priority flotation, mixed flotation and mixed-prior flotation. Let’s learn about them with the editor below!

1. Nickel sulfide ore preferential flotation method

Nickel sulfide ore preferential flotation (or partial preferential flotation) is to first flotate copper first, and then float it in the tailings. Nickel to obtain copper concentrate and nickel concentrate. This method is mostly suitable for processing copper-nickel minerals that contain more copper than nickel.

2. Mixed flotation method of nickel sulfide ore

Mixed flotation of copper-nickel sulfide ore is to simultaneously extract nickel sulfide ore from the ore. Flotation separates copper and nickel mixed minerals, and then separates copper concentrate (containing low nickel) and nickel (containing low copper) concentrate from the mixed concentrate. The obtained nickel concentrate can be directly smelted. This method is mostly suitable for selecting copper-nickel ores with lower copper content than nickel content.

3. Mixed-preferred flotation method of nickel sulfide ore

The mixed-preferred flotation method is to float copper first and nickel mixed minerals, and then the copper concentrate is preferably selected from the mixed concentrate, and then the qualified nickel concentrate is flotated from the copper tailings. When various types of nickel minerals have large differences in floatability, after mixing and flotation to separate copper and nickel, the tailings can be enriched again to further recover nickel minerals with poor floatability.

It should be noted that the mixed-prior flotation method needs to follow one principle when determining its process: rather use When copper enters the nickel concentrate, nickel must also be prevented from entering the copper concentrate. This is because the nickel in the copper concentrate suffers a large loss during the smelting process, while the copper in the nickel concentrate can be effectively recovered.

The above is an introduction to the common nickel sulfide ore beneficiation methods. In addition, there are gravity separation methods and magnetic separation methods. In the beneficiation method, nickel sulfide minerals can also be separated, but it is usually combined with flotation to do a joint beneficiation process to obtain a more ideal nickel concentrate. When beneficiating nickel ore, a suitable process solution should be selected based on the properties of the ore. However, there are no identical mines in the same world, let alone nickel ores with the same properties. Therefore, it is recommended to proceed firstOre beneficiation test, through test analysis, obtain a suitable nickel sulfide ore beneficiation process plan. If you have any needs, please feel free to consult Xinhai Mining Equipment!