The experiment get rid of the glycol from glycol glucosides by decompression distillation method firstly, and then get rid of glycol from glycol glucosides by extraction method in butyl alcohol, hexamethylene alkyl and water as extraction reagent.
首先采用减压蒸馏的方法除去产物中的部分乙二醇,再通过正丁醇、环己烷、水萃取的方法对乙二醇和乙二醇葡糖苷进行萃取,经过萃取后,仍然存在17.4%的乙二醇残余,在工业生产上,这种残余量是可以接受的。
参考来源 - 多羟基化合物的制备与性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Hexamethylene diisocyanate (HMDI) may be used in prepolymer, in place of TDI.
六亚甲基二异氰酸酯(HMDI)可用在预聚物中代替甲苯二异氰酸酯〔tdi〕。
The tendency of preparing adipic acid and hexamethylene diamine from non-benzene materials is also introduced.
此外，还介绍了以非苯原料制备己二酸、己二胺的开发情况和市场动向。
With the hexamethylene as solvent and naphthalene as solute, the relative error of molar mass of naphthalene measured is not much as 1%.
以环己烷作溶剂、萘为溶质测得萘摩尔质量的相对误差均在1%以内。
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