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中低温煤焦油间/对甲酚分离工艺研究

Jin-feng ZHANG,Han-xi SHEN,Kui ZHOU,Su-fang WU,Yan-ting LIU

Applied Chemical Industry（2020）

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Abstract
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％.
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