中低温煤焦油间/对甲酚分离工艺研究  

Study on separation technology of m/p-cresol

作　　者：张金峰[1] 沈寒晰[1] 周魁[1] 吴素芳[1] 刘彦婷[1] ZHANG Jin-feng;SHEN Han-xi;ZHOU Kui;WU Su-fang;LIU Yan-ting(Shaanxi Key Laboratory of Petroleum for Fine Chemicals,Shaanxi Research Design Institute ofPetroleum and Chemical Industry,Xi’an 710054,China)

机构地区：[1]陕西省石油化工研究设计院,陕西省石油精细化学品重点实验室,陕西西安710054

出　　处：《应用化工》2020年第3期679-680,共2页Applied Chemical Industry

基　　金：2018年陕西省重点项目(2018ZDXM-GY-162)。

摘　　要：混酚甲酚中加入尿素进行络合分离、精制,得到高纯度的间甲酚产品。考察了物料配比、溶剂量、析出温度等因素对间甲酚纯度和收率的影响。结果表明,较佳分离工艺条件是:尿素与间甲酚物质的量比为1.25∶1,间/对甲酚混合物与甲苯用量为1∶3 g/mL,析出温度为-15℃,间甲酚产率达77.5%,纯度达99.0%。The urea complexation separation process was studied,and the high purity m-cresol product was separated and refined.The effects of material ratio,solvent amount and precipitation temperature on the purity and yield of m-cresol were investigated.The results showed that the optimal separation process conditions were as follows:the molar ratio of urea and m-cresol was 1.25∶1,the volume ratio of m-cresol mixture with toluene was 1∶3 g/mL,the precipitation temperature was-15℃,the yield of m-cresol products was 77.5%and the purity was 99.0%.

关 键 词：间甲酚 间/对甲酚 分离 尿素 

分 类 号：TQ522[化学工程—煤化学工程] TQ523