武汉工程大学学报2017，Vol.39Issue(6)：607-610,4.DOI:10.3969/j.issn.1674⁃2869.2017.06.014
氧化-柱撑/离子交换法水云母中的提钾研究
Extracting Potassium from Hydromica by Oxidation-Pillar/Ion Exchange Method
摘要
Abstract
To alleviate the supply and demand contradiction of potassium resources in China,we proposed a new oxidation-pillar/ion exchange method for extracting potassium from hydromica. The soluble sylvite was obtained by mixing oxidant,pillared agent and ion-exchange agent in hydration reaction system at 60 ℃. The extracting ratio of potassium was measured by atomic absorption spectrophotometer and the structural change of hydromica in the process of potassium release was characterized by X-ray diffraction. The experimental results indicate that product still keeps the structure of layer silicates by oxidation-pillar/ion exchange,the basal spacing of hydromica was expanded from 1.0 nm to 4.0 nm and the extraction rate of potassium is up to 98%in 14 h.关键词
水云母/钾/氧化/柱撑/离子交换/基面间距Key words
hydromica/potassium/oxidation/pillar/ion-exchange/basal spacing分类
矿业与冶金引用本文复制引用
姚东辉,黄志良,李紫谦,危钰..氧化-柱撑/离子交换法水云母中的提钾研究[J].武汉工程大学学报,2017,39(6):607-610,4.基金项目
国家自然科学基金(51374155) （51374155）
湖北省科技支撑计划(2014BCB034,2015BAA105) （2014BCB034,2015BAA105）
湖北省自然科学基金(2014CFB796) （2014CFB796）
