双极膜电渗析法制备多钼酸铵溶液的研究
详细信息 查看官网全文
- 英文论文题名：Study on preparation of ammonium tetramolybdate solution using bipolar membrane electrodialysis
- 论文作者：王强 ; 张贵清 ; 关文娟 ; 曾理 ; 李青刚 ; 曹佐英
- 英文论文作者：WANG Qiang ; ZHANG Guiqing ; Guan Wenguan ; Zen Li ; Li Qinggang ; Cao Zuoying ; Department of Metallurgical Science and Engineering School of Metallurgy and Environment ; Central South University
- 年：2016
- 作者机构：中南大学冶金与环境学院冶金科学与工程系;
- 论文关键词：四钼酸铵结晶 ; 双极膜 ; 电渗析
- 英文论文关键词：ammonium metatungstate ; bipolar membrane ; electrodialysis
- 会议召开时间：2016-11-25
- 会议录名称：第五届全国膜分离技术在冶金工业中应用研讨会论文集
- 语种：中文
- 分类号：TQ113.7;TQ028.8
- 学会代码：LXJT
- 会议名称：第五届全国膜分离技术在冶金工业中应用研讨会
- 会议地点：中国湖南长沙
- 主办单位：中国膜工业协会、中南大学
- 学会名称：中国蓝星(集团)总公司膜科学与技术编辑部
- 页数：7
- 文件大小：643k
- 原文格式：O
- 会议级别：全国
摘要
提出一种利用双极膜电渗析器制备多钼酸铵溶液的新工艺.该工艺解决了传统四钼酸铵硝酸酸沉结晶工艺氨氮回收困难、废水排放量大、处理成本高的难题,实现了钼酸铵溶液调酸和氨回收的目标.本研究在考察了电流密度、碱室溶液起始浓度、盐室Mo浓度、盐室温度等因素对双极膜电渗析过程影响规律的基础上,进行了电流密度500 A/m~2,碱室NH4HCO_3 2.0mol/L,极室(NH_4)_2CO_31.0 mol/L,盐室Mo浓度169.2 g/L,盐室温度33℃的优化条件试验,试验结果表明:该工艺平均电流效率可达到82%,直流电耗为0.058 kWh/mol NH_3或者0.887 kWh/kg Mo,Mo的回收率高达99.4%,且电渗析过程运转稳定.
An ammonium tetramolybdate solution was prepared from ammonium molybdate solution using bipolar membrane electrodialysis(BMED).The produation of ammonium tetramolybdate solution and ammonium recycling are achieved timely.The new technology avoids the production of much high content ammonium wastewater and decreases the production cost of ammonium tetramolybdate.The effects of current density,initial NH_4 HCO_3 concentration of base solution,Mo concentration of feed solution and temperature of product solution on BMED processwere investigated,and the comprehensive operation test was carried out under the optimized conditions.The results indicated that,under the optimum operating conditions of current density 500 A/m~2,Mo concenration of feed solution is 169.2 g/L,initial pH is 9.3,initial NH4 HCO3 concentration of base solution 2.0 mol/L,initial(NH_4)_2CO_3 concentration of pole solution 1.0 mol/L,temperature is 33 ℃,pH of product solution was controlled at 4.0.The processcurrent efficiency was 82% and the direct electric consumption(E) of Mo was 0.877 kWh/kg,and the direct recovery of Mo reached 99.4%.Respectively,The BMED process operated stable and it was very easy to control.
An ammonium tetramolybdate solution was prepared from ammonium molybdate solution using bipolar membrane electrodialysis(BMED).The produation of ammonium tetramolybdate solution and ammonium recycling are achieved timely.The new technology avoids the production of much high content ammonium wastewater and decreases the production cost of ammonium tetramolybdate.The effects of current density,initial NH_4 HCO_3 concentration of base solution,Mo concentration of feed solution and temperature of product solution on BMED processwere investigated,and the comprehensive operation test was carried out under the optimized conditions.The results indicated that,under the optimum operating conditions of current density 500 A/m~2,Mo concenration of feed solution is 169.2 g/L,initial pH is 9.3,initial NH4 HCO3 concentration of base solution 2.0 mol/L,initial(NH_4)_2CO_3 concentration of pole solution 1.0 mol/L,temperature is 33 ℃,pH of product solution was controlled at 4.0.The processcurrent efficiency was 82% and the direct electric consumption(E) of Mo was 0.877 kWh/kg,and the direct recovery of Mo reached 99.4%.Respectively,The BMED process operated stable and it was very easy to control.
引文
[1]李洪桂.稀有金属冶金学[M]//北京:冶金工业出版社,1990.
[2]张启修,赵秦生.钨钼冶金学[M]//北京:冶金工业出版社,2005.
[3]王志诚.用四钼酸铵生产试剂级七钼酸铵的工艺研究与实践[J].中国钼业,2000,05:29-31.
[4]李辉,唐丽霞.钼酸铵生产工艺与技术进展状况分析[J].中国钼业,2009,33(6):41-43.
[5]王桂美.四钼酸铵晶体成核及结晶工艺条件的研究[D].福州大学,2005.
[6]桂林,谢斌,王常华.钼酸铵酸沉工艺条件的控制[J].中国钼业,1999,01:29-32.
[7]王学文,王明玉,冯大伟,等.钼酸铵酸沉结晶母液电渗析预浓缩实验研究[C]//第三届膜分离技术在冶金工业中应用研讨会论文.2009:4.
[8]郭红波,陈宁,许明臣,et al.Preparation method of beta type ammonium tetramolybdate[P],CN102583542B.2014.
[9]荷兰AJB.肯佩曼编著.双极膜电渗析技术手册[M]//徐铜文,付荣强,译.北京:化学工业出版社,2004.
[10]郑淑英.双极膜电渗析的理论研究进展与应用[J].化学工程与装备,2011,10:161-164.
[11]马洪运,吴旭冉,王保国.双极膜分离技术及应用进展[J].化工进展,2013,10:2274-2278.
[12]曾成威.双极膜电渗析制备偏钨酸盐的技术研究[D].中南大学,2012.
[13]关文娟,张贵清,曾成威,等.双极膜电渗析法制备偏钨酸铵溶液的研究[C]//第四届全国膜分离技术在冶金工业中应用研讨会论文.2014:8.
[14]高艳荣,王建友,刘红斌.双极膜电渗析解离NaCl清洁制备酸碱的实验研究[J].膜科学与技术,2014,34(3):96-103.
[15]高艳荣,王建友,卢会霞.双极膜电渗析清洁制备NaOH和H_2SO_4的试验研究[J].水处理技术,2013,39(10):18-22.
[16]王文聪,杜伟,刘德华.双极膜电渗析法1,3-丙二醇发酵液的脱盐处理及主要副产物的回收[J].膜科学与技术,2015,25(1):103-107.
[17]万林生,徐志峰,刘建华,等.钼酸铵结晶动力学参数与溶液同多酸根组成变化的关系[J].中国钼业,2001,25(4):51-54.
[2]张启修,赵秦生.钨钼冶金学[M]//北京:冶金工业出版社,2005.
[3]王志诚.用四钼酸铵生产试剂级七钼酸铵的工艺研究与实践[J].中国钼业,2000,05:29-31.
[4]李辉,唐丽霞.钼酸铵生产工艺与技术进展状况分析[J].中国钼业,2009,33(6):41-43.
[5]王桂美.四钼酸铵晶体成核及结晶工艺条件的研究[D].福州大学,2005.
[6]桂林,谢斌,王常华.钼酸铵酸沉工艺条件的控制[J].中国钼业,1999,01:29-32.
[7]王学文,王明玉,冯大伟,等.钼酸铵酸沉结晶母液电渗析预浓缩实验研究[C]//第三届膜分离技术在冶金工业中应用研讨会论文.2009:4.
[8]郭红波,陈宁,许明臣,et al.Preparation method of beta type ammonium tetramolybdate[P],CN102583542B.2014.
[9]荷兰AJB.肯佩曼编著.双极膜电渗析技术手册[M]//徐铜文,付荣强,译.北京:化学工业出版社,2004.
[10]郑淑英.双极膜电渗析的理论研究进展与应用[J].化学工程与装备,2011,10:161-164.
[11]马洪运,吴旭冉,王保国.双极膜分离技术及应用进展[J].化工进展,2013,10:2274-2278.
[12]曾成威.双极膜电渗析制备偏钨酸盐的技术研究[D].中南大学,2012.
[13]关文娟,张贵清,曾成威,等.双极膜电渗析法制备偏钨酸铵溶液的研究[C]//第四届全国膜分离技术在冶金工业中应用研讨会论文.2014:8.
[14]高艳荣,王建友,刘红斌.双极膜电渗析解离NaCl清洁制备酸碱的实验研究[J].膜科学与技术,2014,34(3):96-103.
[15]高艳荣,王建友,卢会霞.双极膜电渗析清洁制备NaOH和H_2SO_4的试验研究[J].水处理技术,2013,39(10):18-22.
[16]王文聪,杜伟,刘德华.双极膜电渗析法1,3-丙二醇发酵液的脱盐处理及主要副产物的回收[J].膜科学与技术,2015,25(1):103-107.
[17]万林生,徐志峰,刘建华,等.钼酸铵结晶动力学参数与溶液同多酸根组成变化的关系[J].中国钼业,2001,25(4):51-54.