国内外典型硫酸盐型盐湖卤水资源现状及提钾工艺综述

Resources Situation and Process Research on Potassium Extraction in Typical Sulphate-type Salt Lakes at Home and Abroad

硫酸钾是一种重要且优质的钾肥产品,广泛应用于一些重要的忌氯经济作物(如烟草、西瓜、茶叶、柑桔、葡萄等),而硫酸盐型盐湖卤水资源是提取硫酸钾产品的重要来源。从国内外硫酸盐型盐湖卤水的资源现状出发,分别以美国的大盐湖、智利的阿塔卡玛盐湖、新疆的罗布泊盐湖、青海的东(西)台吉乃尔盐湖为研究对象,详细阐述了国内外四大典型硫酸型盐湖中钾的提取工艺方法及特点,最后针对硫酸型盐湖卤水钾的提取作了总结和展望。

Potassium sulphate is an important and high quality potash product,and it is widely used for some significant chlorine avoid economic crops(such as tobacco,watermelon,tea,citrus,grapes etc.).The sulphate-type salt lake is the important resource for extracting potassium sulfate products.In this paper,the resources status of sulphate-type salt lake brine at home and abroad is first reviewed.Then the Great Salt Lake in USA,Atacama Salt Lake in Chile,Lop Nur Salt Lake in Xinjiang and East(West)Taijinail Salt Lake in Qinghai are selected the research objects,the extraction of potassium from sulphate-type salt lake are described in detail.In the end,the extraction of potassium from the brine of sulphate-type salt lake are summarized and the developments of extraction process are prospected.