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[1]姚东辉,黄志良*,李紫谦,等.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(06):607-610.[doi:10. 3969/j. issn. 1674?2869. 2017. 06. 014]
 YAO Donghui,HUANG Zhiliang*,LI Ziqian,et al.Extracting Potassium from Hydromica by Oxidation-Pillar/Ion Exchange Method[J].Journal of Wuhan Institute of Technology,2017,39(06):607-610.[doi:10. 3969/j. issn. 1674?2869. 2017. 06. 014]
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氧化-柱撑/离子交换法水云母中的提钾研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年06期
页码:
607-610
栏目:
化学与化学工程
出版日期:
2017-12-30

文章信息/Info

Title:
Extracting Potassium from Hydromica by Oxidation-Pillar/Ion Exchange Method
文章编号:
20170614
作者:
姚东辉黄志良*李紫谦危 钰
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
YAO Donghui HUANG Zhiliang* LI ZiqianWEI Yu
School of Materials and Engineering,Wuhan Institute of Technology, Wuhan 430205, China
关键词:
水云母氧化柱撑离子交换基面间距
Keywords:
hydromica potassium oxidation pillar ion-exchange basal spacing
分类号:
TD985
DOI:
10. 3969/j. issn. 1674?2869. 2017. 06. 014
文献标志码:
A
摘要:
为缓解我国钾资源的供需矛盾,采用氧化-柱撑/离子交换法从水云母中提取钾元素. 在60 ℃温度条件下,水热反应水云母和氧化剂、柱撑剂、离子交换剂等反应试剂,过滤反应液,从滤液中得到可溶性钾盐. 通过原子吸收分光光度计和X射线衍射,测定反应后提钾率和云母脱钾过程中的结构变化. 实验结果表明,经过氧化-柱撑/离子交换后的水云母的层状硅酸盐结构未被破坏,基面间距由1.0 nm 扩张到4.0 nm,14 h内层间K+几乎被全部提取出来,提钾率高达98%.
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.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-04-21基金项目:国家自然科学基金(51374155);湖北省科技支撑计划(2014BCB034,2015BAA105);湖北省自然科学基金(2014CFB796)作者简介:姚东辉,硕士研究生. E-mail:[email protected]
更新日期/Last Update: 2018-01-04