| Customization: | Available |
|---|---|
| Type: | Flotation Separator |
| Voltage: | 440V |
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| 1 | Water washing, graded desliming | The grade of SiO2 in quartz sand decreases with the decrease of quartz sand particle size, while the grade of impurity minerals is the opposite. This phenomenon is particularly evident in quartz sand containing a large amount of clay minerals. Therefore, it is necessary to wash and deslim the quartz sand ore before selection. |
| 2 | Scrubbing | Scrubbing is the process of using mechanical force and the grinding force between sand particles to remove thin films of iron and muddy impurities on the surface of quartz sand, as well as to further crush mineral aggregates that have not yet formed monomers. After classification, the quartz sand is further purified. Currently, there are mainly two methods: rod friction washing and mechanical wiping. |
| 3 | flotation | The separation of mica and quartz is difficult, and using anionic collectors under acidic conditions or anionic cationic collectors under alkaline conditions for flotation can achieve good results. Generally, after scrubbing, desliming, magnetic separation, and flotation, the purity of quartz sand can reach over 99%, which basically meets the needs of industrial sand. |
| 4 | acid leaching |
Dilute acid has a significant effect on the removal of iron and aluminum, while for the removal of titanium and chromium, concentrated sulfuric acid and aqua regia are used for acid leaching treatment. Typically, a mixed acid composed of the above-mentioned acids is used for the acid leaching removal of impurity minerals. The control of various factors in acid leaching should be based on the requirements of the final grade of quartz, and the concentration, temperature, and amount of acid should be minimized as much as possible to achieve quartz purification at a lower beneficiation cost. |
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