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Process/project case 10-channel DMAC continuous extraction equipment

by:Deyuan      2020-09-11
N, N - Dimethyl acetamide, referred to as '10-channel DMAC, is a kind of strong polar solvent, widely used in medicine, heat resistant synthetic fiber, plastic film, acrylon filature, oil processing and organic pigments and other industrial fields. Especially in the pharmaceutical intermediates to the production process of bitterness, cephalosporin 10-channel DMAC as high value products in the industrial waste water content in the 5 - 17%, if not treated directly discharge, the serious environmental pollution, on the one hand, on the other hand, there will be a large number of 10-channel DMAC erosion caused by resources waste.

10-channel DMAC in current wastewater treatment methods are divided into: distillation, distillation, extraction, membrane separation, inner electrolysis method. Among them, the electrolytic method can not realize 10-channel DMAC recycling; Distillation recycling 10-channel DMAC purity can reach more than 90%, but need to consume large amounts of energy, do not meet the requirements of energy-saving green chemical production; Membrane separation can isolate high purity 10-channel DMAC, but due to the membrane separation technology is not mature and expensive domestic, unable to industrial large-scale applications.

recycling 10-channel DMAC solvent extraction can not only effectively, and there is no excessive energy consumption in operation process.

zhengzhou extraction as liquid liquid extraction technology and equipment suppliers, have professional 10-channel DMAC wastewater extraction technology and rich project experience, several 10-channel DMAC continuous extraction for customer construction project case, the following examples of zhengzhou extraction scheme 10-channel DMAC continuous extraction equipment technology company.
 
  项目地址:江苏
  建设单位:郑州萃取
  工艺目标:取通过萃降低水中的DMAC含量
  工艺设计:









工艺项





料液信息:

废水中的DMAC含量10%



萃取剂:

氯仿



萃取温度:

常温



处理量:

5吨/天



萃取相比:

氯仿:DMAC废水=1:1



萃取方式:

逆流



萃取级数:

4级逆流萃取



 
  连续萃取设备选���:








设备项





设备选型:

4台CWL250- 米
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