浅谈碱洗和水洗对增塑剂质量的影响

Discussion on the Influence of the Quality of Plasticizer by Alkaline Washing and Water Washing

生产过程中，使用碱洗和水洗对环氧大豆油的酸度和环氧值影响显著，而使用溶度为3％～4％的NaOH溶液，用量与粗品的体积比为1：（1～1.2），在粗品温度相同（约40℃）的条件下进行碱洗，并且用离子交换树脂处理过的水，用量与粗品的体积比为1：（1～2）进行水洗，即可保证环氧大豆油的酸度和环氧值在合格范围内，同时又可缩短油水分层清晰时间。

In production process , the use of alkaline cleaning and washing effect on acidity and epoxy value of epoxy soybean oil was significantly , and solubility was 3% -4% NaOH solution, dosage of alcohol and volume ratio was 1：（1-1.2）, the coarse product temperature was about 40℃under the condition of same alkaline cleaning , and treated water with ion exchange resins, the dosage of alcohol and volume ratio was 1：（1-2） for washing, can guarantee the acidity and epoxy value of epoxy soybean oil in the qualified range , at the same time, the time of oil and water layer clear was shortened.