摘要
依据国内外开发的不同钾长石提钾技术反应原理及工艺过程,分类介绍各种技术的特点,提出了改进建议.鉴于现有技术存在工艺流程长、成本高、经济效益差等问题,指出不单独提钾而是将钾长石整体制成多元素复合肥料或土壤调理剂应是今后的重点研究方向,介绍了这一方向的研究进展,并通过分析水热法制备的多元素复合肥料的优良特性,表明了其具有广阔的应用前景.
A variety of potassium extracting technologies from potassium feldspar have been developed at home and abroad. According to the reaction principle and technological process, these technologies are classified and introduced. The characteristics of various technologies are analyzed, and suggestions for improvement are given. In view of the problems of long process, high cost, poor economic benefits of these potassium extracting technologies from potassium feldspar, it is pointed out that the preparation of potassium feldspar as a multi-element compound fertilizer or soil conditioner should be carried out in the future. The research progress in this direction is introduced. By analyzing the fine characteristics of multi-element fertilizer prepared by hydrothermal method, it is indicated that hvdrothermal method has extensive application prospect.
作者
宋一涵
李洪枚
马淑花
王晓辉
穆小占
郑诗礼
Yihan SONG;Hongmei LI;Shuhua MA;Xiaohui WANG;Xiaozhan MU;Shili ZHENG(School of Safety and Environmental Engineering, Capital University of Economics and Business, Beijing 100070, China;Key Laboratory of Green Process and Engineering, National Engineering Lab of Hydrometallurgy Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China)
出处
《过程工程学报》
CAS
CSCD
北大核心
2018年第2期241-257,共17页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:51474199,51774263)
北京高等学校高水平人才交叉培养“实培计划”项目—毕业设计(科研类)
关键词
钾长石
提钾
机理
复合肥料
水热法
potassium feldspar
extracting potassium
mechanism
compound fertilizer
hydro-thermal method
