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为了综合利用察尔汗盐湖的镁资源、西北丰富的电力和民和镁厂的物质技术基础,拟定以钾光卤石(或水氯镁石)及白云石为原料提取金属镁。生产方法的主要特点为,用钾光卤石(或水氯镁石)脱水与从白云石中用氯化镁法提取合成轻质氧化镁及其氯化联合生产无水氯化镁,再用传统的熔盐电解法制取金属镁(以下简称联合法)。该法不但可以充分运用和发挥我国多年积累的菱镁矿氯化生产无水氯化镁,用电解法制取金属镁的技术经验和优势;而且可将我国许多单位研究过的钾光卤石
In order to comprehensively utilize the magnesium resources of Chaerhan Salt Lake, the abundant electricity in Northwest China and the material and technological basis of Minhe and Magnesium plants, it is proposed to extract the metallic magnesium with potassium carnallite (or bischofite) and dolomite as raw materials. The main features of the production process are that the dehydration of potassium carnallite (or bischofite) and the synthesis of light magnesium oxide from dolomite by the magnesium chloride process and the chlorination thereof to produce anhydrous magnesium chloride followed by conventional molten salt Electrolytic magnesium metal (hereinafter referred to as the joint law). The method can not only make full use of and exert the chlorination of anhydrous magnesium chloride produced by our country for many years, but also use the electrolytic method to obtain the technical experience and advantages of metallic magnesium. Moreover,