Refinery waste water treating was tested with an annular centrifugal extractor for naphthenic acid recovery in Shengli Refinery of Qilu Petrochemical Company.
介绍用三辛胺萃取剂回收石油酸废水中环烷酸的工艺流程、萃取设备和工业试验结果。
Results: Hogwash Oil had many special characters in sense, melting point, natrium, electrical conductivity of water extractor, fatty acid compositions and so on.
结果：潲水油的感官、熔点、钠、水提取物电导率、脂肪酸组成成分等指标具有特异性，并可以用相应的检测方法进行检测。
Methods the Soxhlet extractor method was adopted for the extraction of pigments, and acid extraction and ethanol precipitation method was used for the preparation of pectin.
方法用索氏提取法提取色素，酸提取乙醇沉淀法制取果胶。
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