Xinhai copper flotation process

Introduction

With more than 20 years of mineral processing experience, Xinhai always strengthens development and innovation of copper flotation reagent, process, technology and equipment. According different types of copper ores and customer demands, Xinhai finally formed four main copper flotation process systems:

flotation cell

Xinhai Copper Flotation Process——Main Equipment

Xinhai Copper Differential Flotation Process

Principle:
According to the floatability, this process separates single copper concentrate firstly and depresses other concentrates, then activates other concentrates to separate.

Process:
Crushing and Screening | Grinding and Classifying | Differential Flotation of Copper Concentrate | Activation Flotation of Other Concentrates |Thickening and Dewatering

Advantages:
Strictly implement reagent rule, control reagent dosage; Easy to operate; Stable and high grade of copper concentrate

Jiangsu 500tpd Copper Differential Flotation Project

  • Ore Property: After the mine sample test, Xinhai Mine Design Institute concluded that the ore was skarn copper, and main minerals were chalcopyrite and bornite, followed by magnetite and pyrite.

  • Xinhai Solution: Xinhai decided to adopt three stage open-circuit crushing, one stage grinding, differential flotation to get copper concentrate and sulfur concentrate, two stage dewatering process. Three stage open-circuit crushing adopted Xinhai jaw crusher, the crushing product was sent to cone crusher by belt conveyor for two or three stage crushing,then sent to Xinhai grid type ball mill for grinding and classifying.Then Xinhai added collector to the pulp for copper differential flotation and mixed slurry was sent to Xinhai JJF flotation cell to get qualified copper concentrate, followed by sulfur concentrate. The tailings were sent to Xinhai magnetic separator to separate qualified iron concentrate. Finally, copper and sulfur concentrate were transported to high efficient thickener, thickening underflow was filtered by plate press filter.

  • Process Indicator: Copper concentrate grade: 50%; Copper recovery rate:90.21%; Sulfur concentrate grade:46%; Iron concentrate grade:52%

  • Copper Differential Flotation Project
  • Copper Differential Flotation Project
  • Copper Differential Flotation Project
  • Copper Differential Flotation Project
Email: mhxu@xinhaimining.net Tel: +86 153-1182-6627

Xinhai Bulk Flotation Process

Principle:
This process floats copper concentrate and other useful minerals together and gets mixed concentrate, then separates mixed concentrate to obtain qualified copper concentrate.

Process:
Crushing and Screening | Grinding and Classifying | Bulk Flotation to Get Bulk Concentrate | Concentrate Separation | Thickening and Dewatering

Advantages:
Save 10% grinding cost; Higher flotation efficiency; Reduce 20% flotation reagent consumption; Wide application and high production efficiency

Shandong 500t/d Copper Lead and Zinc Ore Bulk Flotation Project

  • Ore Property: Shandong client commissioned Xinhai Mine Research Institute to conduct ore dressing experiment after collecting 50kg samples on the scene. After tested the ore properties of sample ore, Xinhai lab concluded that the main metal minerals of this project were copper, lead, zinc, and a certain amount of magnetite.

  • Xinhai Solution: Xinhai Mine Research Institute carried on preliminary exploration of its processing conditions and found that the copper recovery rate was the highest in bulk flotation process. Therefore, after discussed with client, Xinhai adopted two stage closed-circuit crushing, one stage closed-circuit grinding, middlings regrinding, copper lead bulk flotation - zinc flotation - copper lead separation process. Copper lead bulk flotation adopted one roughing, three scavenging, four cleaning process. Roughing and scavenging adopted Xinhai XCF flotation cell, cleaning used Xinhai BF flotation cell. Zinc flotation adopted one roughing, three scavenging, four cleaning process. Roughing and scavenging adopted KYF flotation cell, and cleaning selected SF flotation cell BF flotation cell was used in copper lead separation process. The dewatering of copper, lead and zinc concentrates used Xinhai efficient deep cone thickener+ceramic filter. The concentrate moisture was about 12% after dewatering.

  • Process Indicator: Copper concentrate grade:40%; Copper recovery rate:83.45%; Lead concentrate grade:50.13%; Zinc concentrate grade:84.68%

  • Copper Lead and Zinc Ore Bulk Flotation Project
  • Copper Lead and Zinc Ore Bulk Flotation Project
  • Copper Lead and Zinc Ore Bulk Flotation Project
  • Copper Lead and Zinc Ore Bulk Flotation Project
Email: mhxu@xinhaimining.net Tel: +86 153-1182-6627

Xinhai Direct Flotation Process

Principle:
This process floats copper ore into foam products with anionic collector, then leaves gangue minerals in the pulp.

Process:
Crushing and Screening | Grinding and Classifying | Roughing, Scavenging and Cleaning | Thickening and Dewatering

Advantages:
Simple flotation reagent; Simple operation procedure; Less processing cost; High extraction of copper ore and high recovery rate

Chile 1500t/d Copper Sulphide Direct Flotation Project

  • Ore Property: The raw ore was single sulfide copper ore, main copper-bearing minerals were bornite and chalcocite

  • Xinhai Solution: In recent years, the ore grade of this project has fallen down, and flotation index was not good. Therefore, Xinhai upgraded its flotation technology: adopt Xinhai JJF flotation cell to replace original flotation column, then add collector and frother as PH regulator, which strengthened concentration process and increased floating ratio of coarse grain. Finally, the recovery rate of copper concentrate reached above 94%, and copper concentrate grade was improved by 3%.

  • Process Indicator: Ore grade:3.13%; Copper concentrate grade:47.12%; Copper recovery rate:91.68%

  • Copper Sulphide Direct Flotation Project
  • Copper Sulphide Direct Flotation Project
  • Copper Sulphide Direct Flotation Project
  • Copper Sulphide Direct Flotation Project
Email: mhxu@xinhaimining.net Tel: +86 153-1182-6627

Xinhai Reverse Flotation Process

Principle:
This copper processing floats gangue minerals into foam products by adopting Xinhai collectors to adjust PH value, then leaves copper ore in the pulp.

Process:
Crushing and Screening | Grinding and Classifying | Roughing, Scavenging and Cleaning | Thickening and Dewatering

Advantages:
Save capital investment; Higher copper concentrate grade; Fast floatation speed, high flotation efficiency

Shanxi 1000t/d Copper Reverse Flotation Project

  • Ore Property: The deposit was sedimentary copper deposit, the main metal minerals was calcareous chalcopyrite. Gangue minerals were mainly carbonate and quartz.

  • Xinhai Solution: Xinhai decided to adopt three stage opening crushing process, closed-circuit rod mill, ball mill and hydrocyclone, single copper flotation, concentrate scavenging and tailings reelection process. After crushing and screening, grinding, and classifying, qualified mineral particles were sent to Xinhai KYF flotation cell, BF flotation cell,the alkaline medium was adjusted to PH10 ~ 10.5. Then added copper inhibitors, which greatly improved foam properties. After one roughing, scavenging and cleaning, high-quality copper concentrate was obtained.

  • Process Indicator: Ore grade: 3.6%; Copper concentrate grade:46.0%; Copper recovery rate:87.10%

  • Copper Reverse Flotation Project
  • Copper Reverse Flotation Project
  • Copper Reverse Flotation Project
  • Copper Reverse Flotation Project
Email: mhxu@xinhaimining.net Tel: +86 153-1182-6627

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