In recent years, the quartz sand beneficiation and purification process is very hot, because the demand for quartz sand is increasing year by year. Quartz sand can be used in glass manufacturing and building products, while high-quality quartz sand can be used in solar glass. How to separate sulfur-containing iron ore from quartz sand? Here we introduce an efficient and low-cost method for removing sulfur from quartz sand.
Quartz sand in nature has many kinds of co (concomitant) impurities, some of which are very complex. If you want to extract high-quality quartz sand for making solar glass, sulfur-containing iron ore is definitely not possible. As we said earlier, if the quartz sand contains magnetite, the magnetite impurities can be easily removed by magnetic separation using the magnetism of magnetite. However, pyrite is completely non magnetic. It is impossible to remove pyrite by the same method.
Magnetic separation is not feasible. If you want to remove pyrite from quartz sand, you can only choose acid leaching or gravity separation. Acid leaching takes advantage of the fact that quartz is insoluble in acid (except HF) and other impurity minerals can be dissolved in acid solution, so as to further purify quartz. Although the acid leaching method can remove pyrite completely and has obvious effect, it also has certain disadvantages, that is, the cost is very high and the efficiency is relatively low. Xinhai once met such customers who used acid leaching to remove pyrite from quartz sand, but the later production was unable to meet the market demand.
Efficient and low-cost method of removing sulfur from quartz sand
The magnetic separation method is not feasible and the cost of acid leaching method is high. At this time, we need to simplify the problem and use the proportion of quartz sand and pyrite to separate them. The specific gravity of quartz sand is generally about 2.6, while the specific gravity of pyrite is 4.9-5.2. There is an obvious specific gravity difference between the two. It is completely feasible in theory to use jigs for separation. Xinhai customers were worried about the low efficiency caused by the fine particles, but after on-site installation and commissioning by Xinhai technicians, they successfully extracted the pyrite from quartz sand, and reduced the pyrite content to the required range, obtaining good sulfur removal effect.
It can be seen that no amount of theoretical knowledge is worth a practice. Xinhai has accumulated experience in overcoming such difficulties time after time. With 24 years of mineral processing experience and advanced technology and equipment, it is today's Xinhai. If you are looking for such a professional, willing to study and keep forging ahead concentrator, Xinhai deserves it!
