发明授权
US07151177B2 Process for the preparation of highly pure triethylene diamine 有权
制备高纯度三亚乙基二胺的方法

Process for the preparation of highly pure triethylene diamine
摘要:
Highly pure triethylenediamine is obtained by a process in which triethylenediamine is freed from high boilers and then the triethylenediamine is vaporized from the mixture thus obtained and is passed into a liquid solvent. The process makes it possible in particular to obtain highly pure solutions of triethylenediamine. Crystallization is generally unnecessary.
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