高纯石英砂的制备工艺研究进展

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中图分类号：TD97 文献标识码：A DO1： 10.7535/hbgykj.2026yx01011

Abstract：This paper reviewed the impurity occurrence states ofhigh-purityquartz sand（HPQS）and the development of its purification technologies.Itoutlined the technical status，merits，and limitationsof HPQS purificationprocesses including crushing-grinding，roasting-waterquenching，magneticseparation，flotation，acid leaching，chlorinationroasting，and combined processes.The analysis demonstrates that system optimization and enhanced process compatibilityare keys to overcoming technicalbotlenecks inhigh-end HPQS preparationtechnology.Basedonthis，the prospectsforitsdevelopment are discussed，and it is pointedout that in-depth researchon HPQS purification can becarried outin the following aspects： 1）developing greenand eficient processesystems，focusingonresearchanddevelopmentof fluoride-fre/low-fluorideacid leaching，bioleaching，andadvancedflotationreagents toachieve grenseparationand eficient，low-energycomsumption purification；2）intensifyingunit operations toachieve higherimpurity liberationandremoval rates；3）promoting the optimizationandapplication of combined processs，and constructing customized integrated process systems tailored tothe characteristics of different raw materials.

Keywords：mineral processing technology；high-purity quartz sand （HPQS）；acid leaching； flotation；roasting

高纯石英砂（high-purity quartz sand，HPQS）是以脉石英、花岗伟晶岩等为原料制备的，具有高硬度和稳定的化学性质，以及耐高温、耐磨、耐腐蚀等特点，是半导体、新能源、航空航天等战略性新兴产业的关键支撑材料，也是国民经济发展的重要原材料[1]。（剩余21871字）