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
    • 8. 发明授权
    • Continuous process for the catalytic epoxidation of olefinic double
bonds with hydrogen peroxide and formic acid
    • 用过氧化氢和甲酸催化环氧化烯属双键的连续方法
    • US4584390A
    • 1986-04-22
    • US615446
    • 1984-05-30
    • Gerhard DieckelmannKlemens EckwertLutz JerominEberhard PeukertUdo Steinberner
    • Gerhard DieckelmannKlemens EckwertLutz JerominEberhard PeukertUdo Steinberner
    • C07D301/14C07D301/16C07D303/00C07D303/04C07D303/14C07D303/42
    • C07D303/42C07D301/14C07D301/16C07D303/04C07D303/14
    • In a multistage process for the continuous epoxidation of double bonds of terminal and non-terminal olefins containing more than 12 carbon atoms, unsaturated higher fatty acids and their lower alkanol and lower alkanediol esters and also unsaturated fatty alcohols containing from 8 to 18, preferably 18, carbon atoms and triglycerides of higher fatty acids including unsaturated fatty acids, preferably soyabean oil, using performic acid formed in situ from hydrogen peroxide and formic acid, the reactants, olefin and hydrogen peroxide/formic acid, are passed at ambient pressure in cross-counter flow through an at least three-stage reaction cascade. The olefinic phase is introduced into the first reaction stage, the hydrogen peroxide and the formic acid are introduced in separate streams into the penultimate reaction stage and the olefin phase and the hydrogen peroxide/formic acid phase (acid water phase) are separated from one another in a phase separator after each reaction stage. The olefinic phase passes successively through reaction stages I to n while the acid water, after reaction stage (n-1), passes through reaction stages (n-2) to 2 in counter flow to the olefin phase and then through stages n and 1, the reaction temperature being maintained in the range from 50.degree. to 80.degree. C. in the reactors and in the range from 15.degree. to 60.degree. C. in the phase separators.
    • 在用于连续环氧化含有12个以上碳原子的末端和非末端烯烃的双键的多级方法中,不饱和高级脂肪酸及其低级链烷醇和低级链烷二醇酯以及含有8-18个不饱和脂肪醇,优选18个 ,使用由过氧化氢和甲酸原位形成的甲酸,反应物,烯烃和过氧化氢/甲酸的高级脂肪酸的碳原子和甘油三酯,包括不饱和脂肪酸,优选大豆油,在环境压力下通过, 逆流通过至少三级反应级联。 将烯烃相引入第一反应阶段,将过氧化氢和甲酸分别引入倒数第二反应阶段,并将烯烃相和过氧化氢/甲酸相(酸水相)彼此分离 在每个反应阶段之后的相分离器中。 烯烃相依次通过反应段I至n,反应阶段(n-1)之后的酸性水通过反应阶段(n-2)反应到烯烃相,然后通过阶段n和1 ,反应器中的反应温度保持在50〜80℃,相分离器在15〜60℃的范围内。