Flotation process for calcite and fluorite type ores

Flotation process for calcite and fluorite type ores

The flotation process of calcite fluorite type ore is a beneficiation method aimed at the characteristics of this type of ore, mainly by adjusting the pH value of the slurry and selecting appropriate collectors and inhibitors to achieve the separation of fluorite and calcite.

Flotation process flow of calcite fluorite type ore

  • 1.Adjusting the pH value of the slurry: In order to achieve effective separation of fluorite and calcite, it is first necessary to adjust the pH value of the slurry. Usually, the pH value of the slurry is adjusted to 8-9.5. Within this pH range, reagents such as water glass, acidified water glass, sodium hexametaphosphate, lignosulfonate, dextrin, tannins, etc. can be used alone or in combination to inhibit calcite.
  • 2.Add collector:After adjusting the pH value of the slurry, add appropriate collector to achieve selective recovery of fluorite. The selection of collectors needs to consider the interaction with calcite and fluorite, as well as the inhibitory effect of calcite.
  • 3.Flotation separation:Through the flotation process, fluorite is separated from calcite by utilizing the different effects of collectors and inhibitors. During the flotation process, it is necessary to control the parameters such as the speed and stirring intensity of the flotation machine to ensure good sorting results.
  • 4.Concentrate and tailings treatment:The fluorite concentrate and calcite tailings obtained from flotation need to be further treated, such as washing, drying, etc., to improve the quality of the concentrate and reduce the volume of the tailings.

Technological advantages

  • 1.Targeted Separation:The flotation process of calcite fluorite type ore is designed based on the characteristics of fluorite and calcite in the ore. By adjusting the pH value of the slurry and selecting appropriate reagents, effective separation of fluorite and calcite is achieved.
  • 2.Reagent optimization:By using water glass, acidified water glass, sodium hexametaphosphate, lignosulfonate, dextrin, tannins and other reagents, calcite can be effectively suppressed and the recovery rate of fluorite can be improved.
  • 3.Flexible process design:Based on the specific characteristics of the ore, the pH value of the slurry and the amount of reagents used can be adjusted to adapt to different types of calcite fluorite type ores.
  • 4.Improving concentrate quality:Through the flotation process, high-quality fluorite concentrate can be obtained, improving resource utilization efficiency.
  • 5.Environmentally friendly:Compared with traditional flotation processes, this process reduces the use of chemical agents and has a smaller impact on the environment.
  • The flotation process of calcite fluorite type ore achieves effective inhibition of calcite and selective recovery of fluorite through precise reagent system and process design. It has advantages such as targeted separation, reagent optimization, flexible process design, improved concentrate quality, and environmental friendliness.