一种己二胺的制备方法

By using hydrogen reduction and activation treatment with a bifunctional catalyst of hydrogenation and ortho-hydroammonolysis, the process of preparing hexamethylenediamine from caprolactam is simplified, solving the problems of complex process and high energy consumption in the existing technology, and realizing efficient industrial production.

CN117466753BActive Publication Date: 2026-07-17JIANGSU YANGNONG CHEMICAL GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU YANGNONG CHEMICAL GROUP CO LTD
Filing Date
2023-11-15
Publication Date
2026-07-17

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Abstract

本发明涉及一种己二胺的制备方法，所述制备方法包括如下步骤：对催化剂前体依次进行氢气还原处理与活化处理，然后通入熔融态己内酰胺，反应得到所述己二胺。本发明实现了氢化和邻氢氨解双功能耦合，有效地解决了现有技术中工艺路线冗长复杂、反应温度高以及能耗大的问题，适用于工业规模化生产。
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