Cryolite is produced from low-concentration fluorosilicic acid and ammonium bicarbonate,aluminum sulphate,sodium sulfate as feedstock,with ammonium sulphate and carbon white as by-products.
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- 介绍了利用中小磷肥厂副产的氟硅酸制冰晶石的新工艺,以低浓度的氟硅酸和碳酸氢铵、硫酸铝、硫酸钠为原料制取冰晶石,并副产硫酸铵和白炭黑。