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一、前言霞石正长岩主要成份是Al_2O_3、Na_2O、K_2O,其助熔性好,经选矿除铁后的霞石正长岩是玻璃工业的优良原料。应用于玻璃工业,可节约价格昂贵而又十分紧缺的纯碱。国外,加拿大三十年代就在玻璃工业中使用霞石正长岩;美国玻璃工业也很早就普遍使用霞石正长岩,美国使用的霞石正长岩大部分以加拿大进口。我国,国家建材局地质研究所经过一年多的努力,对我县龙泉乡霞石正长岩选矿工艺的研究已取得成功,并提供了选矿产品及有关全部数据。我们将龙泉霞石正长岩的化学组份与加拿大的霞石正长岩的典型组份进行了对比(见表1),发观龙泉霞石正长岩除Fe_2O_3含量稍高外,其他成分与加拿大霞石正长岩的典型成
First, the foreword Nepheline syenite main ingredient is Al 2 O 3, Na 2 O, K 2 O, its good flotation, by the neodymium after removal of iron ore is the excellent raw material glass industry. Used in the glass industry, can save expensive and very scarce soda ash. Abroad, in Canada, nepheline syenite was used in the glass industry in the 1930s. Nepheline syenite was also commonly used in the glass industry in the United States. Most nepheline syenite used in the United States was imported from Canada. China, National Institute of Geology and Building Materials Bureau after more than a year of hard work, my county Longquan Township nepheline syenite process beneficiation process has been successful, and provides the beneficiation products and all the relevant data. We compare the chemical composition of Longquan Nepheline syenite with the typical compositions of Nepheline Syenite in Canada (Table 1). In addition to slightly higher Fe 2 O 3 concentrations, Typical of Canada’s nepheline syenite