摘要
以有机锡(Fascat4102)作催化剂,苯酐和辛醇(2-乙基己醇)酯化反应生成邻苯二甲酸二辛酯(DOP),其最佳工艺条件为:酯化温度215～225℃,催化剂加入量2.0‰,过量醇含量17%,脱醇真空为20KPa(绝压),脱醇温度为155℃,活性炭加入量为1‰,省却中和水洗和汽提工序,产品质量可以达到优级品.
The synthetic method of dioctyl phthalate(DOP)was presented,no neutralization&no water wash made quality of production first-rate,with emphasis on the selection and usage of organotin(Fascat4102)catalyst was2.0‰(accounted for phthalic enhydride),the reaction temperature was215～225℃,content of alcohol was17%,temperature of separating alcohol was155℃,absolute pressure was20KPa,content of active carbon was1‰.
出处
《安徽化工》
CAS
2002年第4期14-16,共3页
Anhui Chemical Industry
