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地球学报  2010 

我国盐湖钾盐资源现状及提钾工艺技术进展

DOI: 10.3975/cagsb.2010.06.11

Keywords: 钾肥,盐湖,水化学类型,工艺路线

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Abstract:

中国是一个农业大国,钾肥缺口很大。中国又是一个多盐湖的国家,盐湖中蕴藏着丰富的钾盐资源,有望解决中国的缺钾问题。中国已经建立了青海察尔汗和新疆罗布泊两个钾肥生产基地,但还是远远满足不了国内钾肥需求,70%需要依赖进口。因此,有必要继续加强钾盐开发研究,建立新的钾肥生产基地。通过长期攻关,我国氯化物型和硫酸盐型盐湖形成了比较成熟的提钾工艺路线,但是,碳酸盐型盐湖提钾研究刚刚起步。本文对青海察尔汗盐湖和新疆罗布泊盐湖两大中国钾肥生产基地的资源及生产工艺进行了分析研究,其成功的开发经验可用来指导我国同类型其他盐湖钾资源的开发;探讨了开发我国碳酸盐型盐湖钾盐的可行之路,碳酸盐型盐湖通过技术创新,可以在盐湖现场获得钾肥产品;指出我国不同水化学类型的盐湖应采取不同的资源利用工艺路线。

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