Quartz sand purifying technology

The invention provides a quartz sand purifying technology, and relates to the technical field of quartz sand purification. The quartz sand purifying technology comprises processes of breaking, desliming, acid leaching and washing; in the breaking process, breaking and sieving step by step are utilized to obtain 20-mesh quartz sand; in the desliming process, a cleaning solution prepared from sodium metasilicate, activated carbon powder, ethyl alcohol and water is utilized to soak and wash the quartz sand; then the quartz sand is put into acid liquor to be acid leached, wherein the acid liquor is prepared from oxalic acid, formic acid and citric acid; finally the quartz sand is washed to obtain the purified quartz sand. The technology can be used for effectively removing thin film iron on the surface of the quartz sand and impurities in the quartz sand to obtain the high-purity quartz sand. 本发明提供了种石英砂提纯工艺，涉及石英砂提纯技术领域；包括破碎、脱泥、酸浸和清洗过程，破碎过程采用逐级破碎，过筛，得到20目石英砂，脱泥过程用偏硅酸钠、活性炭粉末、乙醇和水组成的清洗液浸泡清洗，然后放入酸液中酸浸，酸液由草酸、甲酸和柠檬酸组成，