高效旋转薄膜蒸发器在亚熔盐铬盐清洁生产中的应用

李  莉; 王京刚; 曲景奎; 翟  超; 齐  涛

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DOI:DOI：10.3969/j.issn.1007-7545.2011.07.003

有色金属（冶炼部分）:2011,(7):12-16

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高效旋转薄膜蒸发器在亚熔盐铬盐清洁生产中的应用

李莉^1,2,3, 王京刚⁴, 曲景奎^5,6, 翟超^1,2,3, 齐涛^5,6

(1.北京化工大学化学工程学院，北京 100029;2.湿法冶金清洁生产技术国家工程实验室，北京 100190;3.中国科学院过程工程研究所绿色过程与工程院重点实验室，北京 100190;4.北京化工大学化学工程学院，北京 100029;5.湿法冶金清洁生产技术国家工程实验室，北京 100190;6.中国科学院过程工程研究所绿色过程与工程院重点实验室，北京 100190)

Application of Efficient Rotary Film Evaporator in Sub-molten Cleaner Production Process of Chromium Salts

LI Li^1,2,3, WANG Jing-gang⁴, QU Jing-kui^5,6, ZHAI Chao^1,2,3, QI Tao^5,6

(1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China;3.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;4.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;5.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China;6.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China)

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中文摘要: 研究采用1m2高效旋转薄膜蒸发器蒸发浓缩除杂净化后50%碱液的过程，考察加热温度、进料流量和真空度等参数对完成液浓度、蒸发强度和总传热系数的影响，优化工艺条件。结果表明，50%碱液以沸点进料，导热油温度在260℃以上，流量控制在0.08m3/h，真空度保持在0.08±0.005MPa，浓缩后的碱液浓度可达75%以上，能够满足该清洁工艺中对于循环碱液浓度的要求，经济效益显著。

中文关键词: 冶金技术高效旋转薄膜蒸发器碱液增浓蒸发强度传热效率

Abstract:The concentration process of the purified alkali solution with 50% content is investigated with the use of the efficient rotary film evaporator with 1 m2 heat-transferring surface. The effects of heating temperature, feed flow rate and vacuum on the completed solution concentration, evaporation intensity and total heat transfer coefficient are examined, and the process conditions are optimized. The results indicate that the concentration of the concentrated alkali solution reaches to more than 75% under the condition of boiling point feed-in, above 260℃ of the heat transfer-oil, 0.080±0.005MPa vacuum and 0.08m3/h flux. It can meet the concentration demands of recycling alkali solution in sub-molten cleaner production process of chromium salts, and with great economic benefits.

keywords: metallurgical technology efficient rotary film evaporator inspissation of alkali solution evaporation strength heat transfer efficiency

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基金项目:国家自然科学基金资助项目(20676136)；国家重点基础研究发展计划(973计划)项目(2007CB613501)；“十一五”国家科技支撑计划重大基金资助项目(2006BAC02A05)

作者	单位
李莉	1.北京化工大学化学工程学院,北京 100029；2.湿法冶金清洁生产技术国家工程实验室,北京 100190；3.中国科学院过程工程研究所绿色过程与工程院重点实验室,北京 100190
王京刚	北京化工大学化学工程学院,北京 100029
曲景奎	湿法冶金清洁生产技术国家工程实验室,北京 100190；中国科学院过程工程研究所绿色过程与工程院重点实验室,北京 100190
翟超	1.北京化工大学化学工程学院,北京 100029；2.湿法冶金清洁生产技术国家工程实验室,北京 100190；3.中国科学院过程工程研究所绿色过程与工程院重点实验室,北京 100190
齐涛	湿法冶金清洁生产技术国家工程实验室,北京 100190；中国科学院过程工程研究所绿色过程与工程院重点实验室,北京 100190

Author Name	Affiliation
LI Li	1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China 3.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
WANG Jing-gang	College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
QU Jing-kui	National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
ZHAI Chao	1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China 3.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
QI Tao	National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

引用文本：
李莉,王京刚,曲景奎,翟超,齐涛.高效旋转薄膜蒸发器在亚熔盐铬盐清洁生产中的应用[J].有色金属（冶炼部分）,2011(7):12-16.
LI Li,WANG Jing-gang,QU Jing-kui,ZHAI Chao,QI Tao.Application of Efficient Rotary Film Evaporator in Sub-molten Cleaner Production Process of Chromium Salts[J].Nonferrous Metals (Extractive Metallurgy),2011(7):12-16.

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