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
    • 1. 发明授权
    • Method for production of high-purity monoethylene glycol
    • 高纯度单乙二醇生产方法
    • US06437199B1
    • 2002-08-20
    • US09615504
    • 2000-07-13
    • Yoshihisa OkaYutaka SugiyamaKenji SuzukiHironori HorieMakoto Furukawa
    • Yoshihisa OkaYutaka SugiyamaKenji SuzukiHironori HorieMakoto Furukawa
    • C07C2700
    • C07C29/106C07C29/80C07C31/202
    • A method for the production of monoethylene glycol of high purity is disclosed which comprises subjecting ethylene to catalytic vapor phase oxidation with a molecular oxygen-containing gas thereby obtaining an ethylene oxide-containing gas, exposing the ethylene oxide-containing gas to an absorbing solution and stripping the resultant ethylene oxide-containing solution in a stripper, condensing the vapor emanating from the top of the stripper thereby obtaining crude ethylene oxide, subjecting at least part of the crude ethylene oxide to a hydration reaction, adding an alkaline substance to the hydration reaction solution in an amount of not less than 0.5 atomic equivalent weight relative to the chlorine atom contained in the hydration reaction solution or dehydrating the hydration reaction solution and introducing the side cut technique to the monoethylene glycol rectification column, and acquiring the monoethylene glycol from the side cut part.
    • 公开了一种制备高纯度单乙二醇的方法,其中包括使乙烯用含分子氧的气体进行催化气相氧化,从而获得含环氧乙烷的气体,将含环氧乙烷的气体暴露于吸收溶液中, 在汽提器中汽提所得到的含环氧乙烷的溶液,冷凝从汽提塔顶部发出的蒸气,从而获得粗环氧乙烷,至少部分粗环氧乙烷进行水合反应,向水化反应中加入碱性物质 溶液相对于水合反应溶液中所含的氯原子为0.5原子当量以上,或使水合反应液脱水,将侧切技术引入单乙二醇精馏塔,从侧面取得单乙二醇 切割部分。