The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted acid dipping. ?

• 采用磁选分离法+稀酸浸泡法联合处理后,使该地石英砂的化学成分达到了优质的生产平板玻璃用硅质原料的国家标准。