固定床反应器合成聚醚胺D-230的研究  

Study on the synthesis of polyether amine D-230 by fixed bed reactor

作　　者：董晓红 房连顺 毕继辉 贾正仁 周兴贵[2] 顾雄毅[2] DONG Xiaohong;FANG Lianshun;BI Jihui;JIA Zhengren;ZHOU Xinggu;GU Xiongyi(Yangzhou Chenhua New Material Co.,Ltd.,Yangzhou 225803,China;East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]扬州晨化新材料股份有限公司,江苏扬州225803 [2]华东理工大学,上海200237

出　　处：《能源化工》2018年第3期18-22,共5页Energy Chemical Industry

基　　金：江苏省科技成果转化专项资金项目(BA2015154)

摘　　要：针对间歇法生产低分子量聚醚胺存在产品转化率低、产品质量差等问题,进行了固定床连续法合成低分子量聚醚胺D-230产品的研究开发。以聚丙二醇醚(PPG-230)与液氨、氢气为原料,在固定床反应器上进行催化胺化反应,合成了聚醚胺D-230。对原料和产物进行了红外光(IR)和核磁共振(NMR)分析,通过(IR)谱图和1HNMR谱图确定了产物结构。通过单因素试验确定了合成聚醚胺D-230的最佳工艺条件:反应温度220℃、反应压力6 MPa、氢体积分数17%~20%、空速0. 2 h-1。在上述条件下,合成的聚醚胺D-230的胺值达到8. 1 mmol/g以上。Aiming at the problems such as low conversion rate and poor quality of product existed in the batch process for synthesizing low molecular weight polyether, the fixed bed continuous process is studied and developed for synthesizing low molecular weight polyether D-230. Using polypropylene glycol ether （PPG-230） with liquid amnlonia and hydrogen as raw materials, polyether D-230 is synthesized by catalytic amination in a fixed bed reactor. The raw materials and products are analyzed by infrared （IR） and nuclear magnetic resonance （NMR）, and the product structure is confirmed by （IR） spectrum and 1H NMR spectrum. The optimum technological conditions for the synthesis of polyether amine D-230 are determined by single factor experiments： the reaction temperature is 220℃, the reaction pressure is 6 MPa, the volume fraction of hydrogen is 17% to 20% and the space velocity is 0.2 h 1 Under the above mentioned conditions, the amine value d the synthesized polyether amine D-230 can reach up to 8.1mmol/g.

关 键 词：聚醚胺 催化胺化 固定床 合成 

分 类 号：TQ423.12[化学工程]