The new neutral flotation technology for quartz sand removal will be unveiled at the 2017 China Non-Metallic Mining Technology and Market Exchange Conference

In addition to the new quartz sand iron neutral flotation reagent successfully developed.

Quartz sand flotation de-ironing series flotation agent

At present, most of China's quartz sand flotation adopts fluorine-free acid method (some enterprises still use fluorine acid method), acid flotation production index is stable, but the corrosion effect on mineral processing equipment can not be ignored, and the flotation equipment is more High requirements; the treatment and discharge of acid and organic flotation reagents produced by the beneficiation process has become a thorny issue for manufacturers. As China's environmental problems become more and more prominent, the central and local governments will improve environmental protection standards, and environmental management will become more and more strict. Quartz sand production enterprises can only reduce costs and increase efficiency, transform and increase income, and green production, and build environmentally friendly green mining enterprises. The development is even longer.

Bengbu Glass Industry Design Institute Design Institute of non-metallic mineral hospital after tackling long-term independent research and development, has successfully developed a new series of neutral flotation reagent quartz purification of our country and from different areas, different types of quartz application tests conducted to obtain More ideal stage results.

Taking a quartzite ( vein quartz ) as an example, the Fe2O3 content of the selected sand is 240ppm, and the neutral flotation agent Y-1 and ZD-1 are used together. The F2O3 content of the flotation concentrate is reduced to 130ppm, and the fine sand recovery rate is 89.15. %; acid flotation pH=2, anion/cation as collector , flotation fine sand Fe2O3 content is 120ppm, and fine sand recovery rate is 90.56%. The content of Fe2O3 in the sand was 130ppm. After the flotation of neutral flotation agent, the content of Fe2O3 in the fine sand was reduced to 80ppm, and the recovery rate of fine sand was 96.44%. Under the acidic condition, the content of Fe2O3 in flotation was 80ppm, and the recovery rate of fine sand was 97.14. %.

Taking a river and lake sand as an example, the content of Fe2O3 in the sand is 0.14%, and the neutral flotation agent Y-1 and ZD-1 are used together. The content of F2O3 in flotation can be reduced to 0.080%, and the recovery rate of fine sand is 60.20%. Under the acidic conditions of the same period, the content of Fe2O3 in primary flotation was 0.080%, and the recovery rate of refined sand was 71.29%.

The new neutral flotation reagent is liquid at room temperature, has low viscosity, good fluidity, low temperature resistance and hard water resistance; good hydrophobic performance, diluted and ready to use, in the natural flotation slurry system pH=7~7.5, no need to use acid and alkali Mixing; flotation fine sand foam is moderate in size, self-defoaming after foam scraping; no viscous to flotation equipment and pipeline, low adhesion.

In order to solve the environmental pressure and cost brought by the acid flotation of quartz sand production enterprises, the relevant personnel of the Non-metallic Mine Design Institute of the Glass Industrial Design Research Institute attended the 2017 China Non-Metallic Mine held in Zibo, Shandong Province from August 5th to 7th. The Science and Technology and Market Exchange Conference, and led the organization of the special forum on siliceous raw materials technology. The sub-forum was hosted by the director of the Non-Metallic Design Institute of the Glass Industry Design Institute and the professor-level high-tech section Shu Tong. At that time, the neutral flotation technology was The progress of a number of quartz sand technologies will be exchanged at the meeting.