技术文摘 关键词:高级烷醇，皂化反应，萃取剂，重结晶 [gap=745]Key words:policosanol; sapolify reaction; extraction agent; recrystall
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The recovery of the extraction agent can reach 85%.
萃取剂回收利用率可达85%。
FCC raw material oil-decompressed wax oil is used as extraction agent to pretreat FCC phenol-bearing wastewater.
作者选用催化原料油—减压蜡油为萃取剂，对催化裂化含酚废水进行脱酚预处理。
Using distilled water as extraction agent, ginseng polysaccharides were extracted by method of ultrasonic wave from ginseng powder.
人参根磨粉后，以蒸馏水为提取剂，用超声波法提取人参根中人参多糖，采用苯酚-硫酸比色法测定多糖含量。
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