| 氯化钙溶液蒸发工艺对比 |
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| 引用本文： | 张强,王炳男. 氯化钙溶液蒸发工艺对比[J]. 氯碱工业, 2022, 58(1): 20-21,25 |
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| 作者姓名： | 张强 王炳男 |
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| 作者单位： | 浙江镇洋发展股份有限公司,浙江宁波315200 |
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| 摘 要： | 在环氧氯丙烷生产过程中,产生大量氯化钙废水,将该氯化钙废水处理并浓缩后制成氯化钙产品外售.比较了将氯化钙溶液浓缩至35％(质量分数)的三效顺流和三效逆流蒸发工艺,顺流蒸发工艺蒸汽消耗略高,但减少了泵的使用,降低了电耗,且循环水用量低,因此,顺流蒸发工艺更合适.
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| 关 键 词： | 氯化钙溶液 蒸发 三效逆流工艺 三效顺流工艺 |
Comparison of evaporation processes of calcium chloride solution |
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| ZHANG Qiang,WANG Bingnan. Comparison of evaporation processes of calcium chloride solution[J]. Chlor-Alkali Industry, 2022, 58(1): 20-21,25 |
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| Authors: | ZHANG Qiang WANG Bingnan |
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| Affiliation: | (Zhejiang Zhenyang Development Co.,Ltd.,Ningbo 315200,China) |
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| Abstract: | A large amount of calcium chloride wastewater was produced in the production of epichloro-hydrin.The calcium chloride wastewater was treated and concentrated to make calceium chloride products for sale.The thre-effect concurrent process and the threeffect countercurrent evaporation process for concentrating calcium chloride solution to 35%(mass fraction)were compared.The steam consumption in the cocurrent evaporation process was slightly higher,but the power consumption was reduced because the use of pumps was reduced,and the consumption of eirculating water was low.Therefore,the cocurrent evaporation process was more suitable. |
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| Keywords: | calcium chloride solution evaporation three-effect countercurrent process three-effect cocurrent process |
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