详细信息
文献类型:期刊文献
中文题名:TMP残液中双三羟甲基丙烷回收过程研究
英文题名:Recycling process of ditrimethylolpropane from TMP residue
作者:杨金忠[1];潘鹤林[1];吴博航[1];林飞腾[1];赵汉秦[1]
机构:[1]华东理工大学化工学院,上海200237
年份:2016
卷号:36
期号:6
起止页码:71
中文期刊名:现代化工
外文期刊名:Modern Chemical Industry
收录:CSTPCD;;Scopus;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;
语种:中文
中文关键词:双三羟甲基丙烷;三羟甲基丙烷;溶液结晶
外文关键词:ditrimethylolpropane; trimethylolpropane; solution cryst-allization;
摘要:研究了用溶液结晶法从三羟甲基丙烷精馏重质残液中提取双三羟甲基丙烷的过程,并对溶解和结晶等关键操作单元进行了讨论,确定了最佳操作条件:原料与溶剂的质量比为1∶4~1∶5,溶解温度为(100~102)℃,结晶温度为(-1~1)℃,搅拌速率为(180~200)r/min。在此条件下,生产的双三羟甲基丙烷产品纯度达到97%以上,熔化温度达到110℃以上,满足工业产品质量要求。
The extraction of ditrimethy1 olpropane from the heavy distillation raffinate of trimethylolpropane is studied by using solution cryst-allization method. The key operations such as dissolution and crystallization,are discussed The optimal conditions are shown as follows: 1 ∶ 4- 1 ∶ 5 of the mass ratio of raw material and solvent,100-102℃ of dissolution temperature,- 1- 1℃ of crystallization temperature,180- 200 r / min of stirring rate. Under the optimal condition,the purity of obtained ditrimethylolpropane can reach above 97% and the melting temperature is above110℃,meeting the quality requirement for the industrial products.
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