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霞石正长岩作为一种非金属矿产,加拿大、挪威、苏联等国早已开发利用,目前,世界总产量已达88万吨(不包括苏联)。霞石正长岩主要用于玻璃和陶瓷工业。霞石正长岩具有高铝、富钾、钠及SiO_2不饱和之特点,它为玻璃、陶瓷工业提供必要的资源。由于岩石具有高碱成分,霞石与石英的不共存性,使它成为玻璃炉料最强烈的助熔剂,陶瓷坯体最理想的烧结剂和釉料的玻璃化剂。另外,在铸石、岩棉等类似工业中亦有同等作用,它能使这些工业降低能耗,提高产品质量。苏联从霞石正长岩中提取铝矾土,并生
As a non-metallic mineral, nepheline syenite has already been developed and utilized in Canada, Norway, the Soviet Union and other countries. At present, the world’s total output has reached 880,000 tons (excluding the Soviet Union). Nepheline syenite is mainly used in glass and ceramics industry. Nepheline syenite has the characteristics of high aluminum, potassium, sodium and unsaturated SiO 2, which provides the necessary resources for the glass and ceramics industries. As the rock has high alkali composition, nepheline and quartz do not coexist, making it the most powerful glass furnace charge, flux, ceramic body best sintering agent and glaze vitrifying agent. In addition, it also has an equal role in similar industries such as cast stone, rock wool and the like, and it enables these industries to reduce energy consumption and improve product quality. The Soviet Union extracted bauxite from nepheline syenite and created it