间苯二甲胺的生产技术与应用进展  

Progress in production technology and application of m- xylene diamine

作　　者：孙长福 SUN Changfu(Chemical Industry Division,China Petroleum and Chemical Corporation,Beijing 100010)

机构地区：[1]中国石油化工股份有限公司化工事业部,北京100010

出　　处：《合成纤维工业》2020年第4期54-58,67,共6页China Synthetic Fiber Industry

摘　　要：综述了间苯二甲胺(MXDA)的生产技术与应用进展。工业上以间二甲苯为原料,经气相氨氧化制得间苯二腈(IPN),再通过催化加氢制得MXDA,该合成路线第一步间二甲苯氨氧化制备IPN的技术已经趋于成熟,第二步IPN催化加氢制备MXDA可采用釜式间歇加氢或固定床连续加氢工艺。日本三菱瓦斯化学公司是目前全球最大的MXDA生产商,采用固定床连续加氢工艺,合计生产能力50 kt/a,国内IPN合计生产能力32 kt/a左右,MXDA生产能力6.5 kt/a。MXDA除部分用于合成环氧树脂固化剂、间二甲苯二氰酸酯外,主要用于生产尼龙MXD6,具有广阔的市场前景,是国内亟待发展的重要的精细化工中间体。我国应重点围绕加氢催化剂,固定床连续工艺流程和分离工艺开展研究,形成具有自主知识产权的MXDA生产工艺,提高产品市场竞争力。The production technology and application progress of m-xylene diamine(MXDA)were reviewed.MXDA was prepared by the catalytic hydrogenation of m-phthalonitrile(IPN)which was obtained from m-xylene by gas-phase ammoxidation in commercial production.The first step of the synthesis route has been increasingly matured,i.e.the ammoxidation of m-xylene into IPN.The catalytic hydrogenation technologies of IPN into MXDA in the second step comprise kettle-type batch hydrogenation process and fixed bed continuous hydrogenation process.Mitsubishi Gas Chemical Co.,Ltd.,Japan,the largest MXDA manufacturer in the world,adopts fixed bed continuous hydrogenation process with a production capacity of 50 kt/a when China has the production capacity of IPN and MXDA about 32 kt/a and 6.5 kt/a respectively.MXDA is an important fine chemical intermediate to be developed and has a broad market prospect in China for it is mainly used in the production of nylon MXD6 besides epoxy resin curing agent and m-xylene diisocyanate.China should develop MXDA production process with independent intellectual property rights and improve product market competitiveness based on the research of hydrogenation catalyst,fixed bed continuous process and separation process.

关 键 词：间二甲苯 间苯二甲腈 间苯二甲胺 加氢催化剂 生产技术 应用进展 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]