doi:10.16597/j.cnki.issn.1002-154x.2026.02.007
酸性二硝基氯苯水洗工艺的改进与展望
李健达
(山西恒锦盛科技有限公司，临汾 041000)
摘 要 分离废酸后的酸性二硝基氯苯中含有少量的酸、盐及硝基酚类化合物。传统处理工艺的水洗和碱洗会产生大量废水。为降低生产成本并提高环保效益，引进新设备后采用了连续逆流水洗工艺，使得单位产品纯碱消耗量降低约50%，废水排放量减少约60%。作者对比了新旧工艺并提出了今后的研究改进方向。
关键词 二硝基氯苯 水洗工艺 连续逆流 熔融结晶
Improvement and Prospect of Water Washing Process for Acid Dinitrochlorobenzene
LI Jianda
(Shanxi Hengjinsheng Technology Co. LTD., Linfen 041000, China)
Abstract After the separation of waste acid, the acidic dinitrochlorobenzene contains a small amount of acid, salts and nitrobenolic compounds. Traditional treatment processes, such as water washing and alkali washing, generate a large amount of wastewater. To reduce production costs and improve environmental benefits, the introduction of new equipment has enabled a continuous countercurrent water washing process, resulting in a reduction of about 50% in soda ash consumption per unit of product and a decrease in wastewater discharge by approximately 60%. The author compares the old with new processes and proposes future research and improvement directions.
Keywords dinitrochlorobenzene water washing process continuous countercurrent melt crystallization