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Cu-Pb-Zn Dressing Process

Cu-Pb-Zn Dressing Process

【Process Advantages】

Adopting mixed flotation-concentrate regrinding process can reduce the grinding cost, and be easy to manage. Application of new non-toxic flotation reagents is efficient and environmental protection.


Mixed flotation-concentrate regrinding process is applied for Cu-Pb-Zn sulfide ore

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[ Process Advantages ]

 Process Advantages

Creative process, low operation cost

Cu-Pb mixed concentrate regrinding process saves the grinding cost without fine grinding all the ores are, and it makes further monomer dissociation to create favorable conditions for the separation of copper and lead.


Case 1

Tibet Lead zinc Beatification Plant is one of our successful cases. This is 3D demo Video of the dressing plant created by our company.

Case 2

A lead-zinc dressing plant in Yunnan, , due to the mining depth increasing, ore properties had changed and the grade of lead and zinc concentrate decreased, so the original flotation is not suitable. After field investigation and analysis, we determined the process according to multi tests:  mixed flotation, preferential flotation of copper lead concentrate, regrinding and re-floating of copper lead concentrate, and equipped with the our equipment. Indexes comparison as follow:

Comparison of ReformationProcessCapacity
Copper Recovery Rate
Pb Concentrate Grade/%Zinc Concentrate Grade/%Service Life of Equipment Liners/Day
Before ReformationPreferential Flotation50078.5335.6883.4950
After ReformationMixed Flotation68083.4550.1384.6890

After the technical reformation, this plant increased the output value of nearly 30000 yuan/day, and the profit increasing of 26000 yuan/day. The economic benefit is remarkable.

Case 3

A copper-lead dressing plant in Xinjiang: the ore with the close symbiosis and fine particle distribution, the process the plant adopted leaded to the poor concentrate grade. So we were authorized to reform the technology.

The plant after the reformation

After analysis of crude properties, we decided to adopt parts of the preferential flotation process. Firstly, selective collectors floated copper based on the original preferential flotation process; then mixed flotation and regrinding the mixed concentrate, grinding fineness can reach -38 μ m78%.


Plant after reformation

technical reformation had the advantages of simple process and low production cost; the recovery of copper concentrate was 90.21%; lead and zinc are qualified; lead concentrate had recovery rate of 88.3%. we obtained highly praise from clients.



By this cooperation, clients witnessed the good device performance and good after sale service . In recent years, we have more and more cooperation with large domestic enterprises, which enhances the service level and exercise installation team. we also has finished more foreign EPC projects.


Other cases:

There are many cases of Cu-Pb-Zn Dressing Process. Welcome to visit our company!

A copper-lead-zinc dressing plant in northwest of China,we adopted parts preferential flotation based on technology advantages of preferential and mixed flotation and combined with the ore characteristics. This plant obtained good beneficiation indexes: lead concentrate grade reached 66.52%; the recovery rate was 88.5%.

A copper-lead-zinc ore dressing plant in Sweden with the daily output of 1000t, copper content of 0.58%, lead content of 2.85% and zinc content 4.90%;we adopted copper-lead mixed flotation. Final copper concentrate contains copper 20.25% and lead 6.75%, and the lead concentrate contains lead 58.73% and copper 3.40%.

A copper lead zinc ore dressing plant in Inner Mongolia, the mainly components of the ore are copper, lead, zinc, and a certain amount of magnetite. According to ore properties and a series of processing tests, we finally decided copper and lead mixed flotation separation - mixed tailings zinc flotation-flotation tailings weak magnetic separation process, so the plant also get more than 65% iron concentrate in addition to the grade high of copper, lead and zinc concentrate.

[ Process Flow ]

Cu-Pb-Zn Dressing Process

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