论文部分内容阅读
冰晶石中固相的组成及其含量均取决于氟化钠与氟化铝的分子比值。在用氟氢酸制取工业冰晶石的生产中,这一比值可用中和剂(氢氧化铝和煅烧纯碱)的比例来调整。根据国定全苏标准10561—80中的规定,工业冰晶石的分子比应不小于1.5。在铝工业
The composition and content of solid phase in cryolite depends on the molecular ratio of sodium fluoride and aluminum fluoride. In the industrial production of cryolite from hydrogen fluoride, this ratio can be adjusted by the ratio of neutralizing agent (aluminum hydroxide and calcined soda ash). According to the provisions of the national standard Quanju 10561-80, the molecular ratio of industrial cryolite should not be less than 1.5. In the aluminum industry