青海盐湖水氯镁石利用技术现状

我国青海盐湖资源丰富，但由于开发初期只注重提取氯化钾，副产的废卤水外排经日晒蒸发形成大量水氯镁石，镁资源浪费的同时对盐湖生态环境造成严重破坏，因此水氯镁石资源的综合利用问题亟待解决。文章介绍了利用盐湖水氯镁石制备金属镁、氧化镁和氢氧化镁的工艺技术现状及其存在的问题，并对盐湖水氯镁石利用技术的发展趋势进行分析与展望。 

Utilization Technical Status of Bischofite in Qinghai Salt Lake

Qinghai salt lake is rich in resources. However, due to the initial development only focused on the extraction of potassium chloride, a large amount of bischofite was generated from the discharged by-product of waste brine under the sun. It not only caused the waste of magnesium resources, but also did serious damage to the ecological environment of the salt lake. Therefore, the comprehensive utilization of bischofite resource needs to be solved urgently. The technology status and existing problems of the preparation of magnesium, magnesium oxide and magnesium hydroxide from the salt lake bischofite were introduced in this paper. Meanwhile, the development trend of the utilization technology of the bischofite in the salt lake was analyzed and forecasted.