Is lead-zincores sulfide flotation problematic?

In most lead & zincores beneficiation, galena, sphalerite, pyrite and chalcopyrite are often found in lead-zinc sulfide ore. Therefore, it is important to organize processes that not only recover valuable minerals, but also selectively separate them into products that can be smelted into metals.

铅锌矿 4 - Is lead-zincores sulfide flotation problematic?

Over the past few years, lead-zinc metal and associated precious metals in lead-zinc ore have made a significant contribution to industrial development, and significant progress has been made in the research on lead-zinc separation, some of which has been fabricated in factories. New problems still arise in the operation of some concentrators, such as low separation efficiency, low concentrate recovery rates, and poor concentrate quality.


So how do we solve lead-zincores sulfide flotation problematic?

The lead-zinc sulfide ore is mainly beneficiated by flotation. In most lead-zinc ore, zincores makes up a larger proportion than lead ore. In practice, therefore, the “suppression of zinc and floating lead” method is generally adopted. Main principles to deal with lead-zinc sulfide ore.

low separation efficiency

The general method of separation is as follows: separation of lead and zinc. Because the floatability of most galena is better than that of sphalerite, the method of suppressing zinc floating is often used. There are cyanide methods, fewer cyanide methods,s and no cyanide method for zincores suppression. In the cyanide method, cyanide and zinc sulfate are often used together.

Lead-zinc sulfide ore is floated mainly to separate lead-zinc and zinc sulfur. Proper selection of regulator is critical to the separation process.

Concentrate recovery is low and concentrate quality is poor

According to the inlaid relationship of useful minerals such as lead and zinc, the grinding stage can roughly choose one-stage grinding process or a multi-stage grinding process. For lead-zinc sulfide ore, tailings regrinding or coarse concentrate regrinding is often used, and medium ore regrinding is rarely used.

1. Grinding particle size
2. Slurry temperature
3. Collecting agent
The above is an introduction to the flotation process of lead-zinc sulfide ore. In actual operation, if you want to choose a suitable, correct, and scientific lead-zinc ore beneficiation process, it is recommended to choose a beneficiation manufacturer with beneficiation qualifications to conduct a beneficiation test first. Fundamentally conduct a comprehensive ore analysis, and then formulate a beneficiation process that conforms to the actual situation.


If you have ideas or questions about lead-zinc ore flotation plant and industrial processing equipment, please contact us: Whatsapp:+8613319277356 Email:[email protected]

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