会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • PROCESS FOR PREPARING ALKANEDIOL AND DIALKYL CARBONATE
    • 制备阿尔卡尼和碳酸二乙酯的方法
    • US20100121078A1
    • 2010-05-13
    • US12435173
    • 2009-05-04
    • Cyrille Paul AllaisMinne BoelensEvert Van Der Heide
    • Cyrille Paul AllaisMinne BoelensEvert Van Der Heide
    • C07D317/10
    • C07C68/065C07C69/96
    • The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: (a) reacting an alkylene carbonate and an alkanol at a temperature of from 10 to 200° C., at a pressure of from 5×104 to 5×106 N/m2 and in the absence of a transesterification catalyst, to obtain a mixture comprising hydroxyalkyl alkyl carbonate, alkanol and alkylene carbonate; (b) contacting the mixture comprising hydroxyalkyl alkyl carbonate, alkanol and alkylene carbonate with a transesterification catalyst at a temperature of from 10 to 200° C. and at a pressure of from 5×104 to 5×106 N/m2, to obtain a mixture comprising the alkanediol and the dialkyl carbonate; and (c) recovering the alkanediol and the dialkyl carbonate from the mixture comprising the alkanediol and the dialkyl carbonate.
    • 本发明涉及一种制备链烷二醇和碳酸二烷基酯的方法,包括:(a)在10至200℃的温度下,在5×10 4至5的压力下使碳酸亚烷基酯和链烷醇反应 ×106N / m 2,并且在不存在酯交换催化剂的情况下,得到包含碳酸烷基酯,链烷醇和碳酸亚烷基酯的混合物; (b)使含碳酸烷基酯,链烷醇和碳酸亚烷基酯的混合物与酯交换催化剂在10〜200℃,压力为5×10 4〜5×10 6 N / m 2下接触,得到 包含链烷二醇和碳酸二烷基酯的混合物; 和(c)从包含链烷二醇和碳酸二烷基酯的混合物中回收链烷二醇和碳酸二烷基酯。