【摘要】 综述了海水提钾技术中化学沉淀法、溶剂萃取法、膜分离法和离子交换法4条技术路线的基本原理和研究进展,分析了上述方法的优、缺点和研究前景;并详细地介绍了由河北工业大学等单位开发的天然沸石法海水提钾技术的工艺流程、技术经济指标、技术特色和开发现状;最后预测了海水提钾技术的发展趋势.更多还原

【Abstract】 The technological principle and study evolution of methods extracting potassium from seawater, which belong to 4 kinds of technological routes including chemical precipitation, solvent-extraction, membrane separation and ionic exchange,were recited.The advantages, disadvantages and development prospects for each method were discussed. The technology process, technical and economic parameters, technical characteristics and status quo of the technology of extracting potassium from seawater by natural zeolite, which was developed by Hebei University of Technology,were amplified; the development trends of technologies of extracting potassium from seawater were forecasted.更多还原