| 基于电化学法的铬盐清洁生产工艺研究 |
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| 引用本文： | 冯海涛,董亚萍,梁建,李波,张波,李武,郑竹林.基于电化学法的铬盐清洁生产工艺研究[J].盐湖研究,2019,27(4):9-17. |
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| 作者姓名： | 冯海涛 董亚萍 梁建 李波 张波 李武 郑竹林 |
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| 作者单位： | ;1.中国科学院青海盐湖研究所中国科学院盐湖资源综合高效利用重点实验室;2.青海省盐湖资源开发工程技术研究中心 |
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| 基金项目： | 青海省科技厅基础研究项目(2017-ZJ-786)；青海省重大科技专项(2016-GX-A10) DOI:10.12119/j.yhyj.201904002基于电化学法的铬盐清洁生产工艺研究冯海涛1,2,董亚萍1,2,梁建1,2,李波1,2,张波1,2,李武1,郑竹林1 (1.中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008；2.青海省盐湖资源开发工程技术研究中心,青海 西宁 810008) |
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| 摘 要： | 现有铬盐生产技术阻碍了铬盐行业的清洁化发展,研发新型铬盐生产技术实属必要。中国科学院青海盐湖研究所自行研发出一套以电化学法为基础的铬盐清洁生产工艺,涵盖三条大工艺和四种母系铬盐产品。包括氢氧化钠溶液中电化学氧化铬铁制备铬酸钠联产三氧化二铬和三氧化二铁工艺,离子膜电解法从铬酸钠合成重铬酸钠工艺,以及离子膜电解法从重铬酸钠合成铬酸酐工艺。相比现有铬盐生产技术,该技术的优势主要体现在以下五点:温和化、去渣化、高值化、自动化和高效化。目前相关研发工作业已走出实验室,走过产业化中间试验,正向产业化示范线迈进。
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| 关 键 词： | 电化学方法 铬酸钠 三氧化二铬 重铬酸钠 铬酸酐 清洁工艺 |
| 收稿时间： | 2019/10/15 0:00:00 |
Study on the Green Production Process of Chromate based on Electrochemical Method |
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| FENG Hai-tao,DONG Ya-ping,LIANG Jian,LI Bo,ZHANG Bo,LI Wu and ZHENG Zhu-lin.Study on the Green Production Process of Chromate based on Electrochemical Method[J].Journal of Salt Lake Research,2019,27(4):9-17. |
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| Authors: | FENG Hai-tao DONG Ya-ping LIANG Jian LI Bo ZHANG Bo LI Wu and ZHENG Zhu-lin |
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| Abstract: | The existing production technology hinders the development of the chromate industry,and it is necessary to develop new chromate production technology.With the successful experience of membrane electrochemical method,Qinghai Institute of Salt Lakes of the Chinese Academy of Sciences has developed a set of chromate cleaning production process based on electrochemical method,covering three large processes and four maternal chromium compounds.Such as preparation of sodium chromate by electrochemical method using high carbon ferrochrome as raw material and co-production of chromium oxide and ferric oxide,synthesis of sodium dichromate from sodium chromate by ion-exchange membrane electrolysis,and synthesis of chromic anhydride from sodium dichromate by ion-exchange membrane electrolysis.Compared with the existing chromate production technology,the advantages of this technology are mainly reflected in the following five points:mild,de-slag,high value,automation and high efficiency.At present,relevant research and development work has gone out of the laboratory,passed the intermediate test of industrialization,and is moving towards the industrialization demonstration line. |
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