Process for the dehydrogenation of aliphatic hydrocarbons saturated into
olefinic hydrocarbons
    11.
    发明授权
    Process for the dehydrogenation of aliphatic hydrocarbons saturated into olefinic hydrocarbons 失效
    饱和到烯烃中的脂肪烃脱氢的方法

    公开(公告)号:US5436383A

    公开(公告)日:1995-07-25

    申请号:US299001

    申请日:1994-08-31

    IPC分类号: C07C5/32 C07C5/333 C07C5/327

    CPC分类号: C07C5/325 C07C5/3337

    摘要: Process for the dehydrogenation of a charge incorporating saturated aliphatic hydrocarbons essentially having 3 to 5 carbon atoms per molecule, in which the charge, previously heated to the reaction temperature and without premixing with the hydrogen, is introduced at the inlet of at least one reactor, where the dehydrogenation reaction is performed in the presence of a catalyst, preferably incorporating a support having at least one oxide of an element chosen from among the groups IIA, IIB, IIIA, IIIB, IVA and IVB of the periodic classification of elements, at least one noble metal from the platinum family, at least one promotor metal and at least one alkali metal or alkaline earth metal.

    摘要翻译: 每分子基本上具有3至5个碳原子的饱和脂族烃的电荷的脱氢方法,其中预先加热到反应温度并且不与氢预混合的电荷在至少一个反应器的入口处引入, 其中脱氢反应在催化剂存在下进行,优选掺入具有选自元素周期分类的组IIA,IIB,IIIA,IIIB,IVA和IVB中的元素的至少一种氧化物的载体,至少 来自铂族的一种贵金属,至少一种助催化剂金属和至少一种碱金属或碱土金属。

    Selectively hydrogenating acetylenic compounds in a high butadiene
content C.sub.4 cut
    14.
    发明授权
    Selectively hydrogenating acetylenic compounds in a high butadiene content C.sub.4 cut 失效
    选择性氢化高丁二烯含量C4馏分中的炔属化合物

    公开(公告)号:US4587369A

    公开(公告)日:1986-05-06

    申请号:US664654

    申请日:1984-10-25

    CPC分类号: C07C5/08 C07C2523/44

    摘要: A C.sub.4 cut of high butadiene content is selectively hydrogenated in contact with a supported palladium catalyst, the operation being performed in admixture with a hydrocarbon and an amine.The C.sub.4 cut of high butadiene content (1) and liquid hydrocarbon containing the amine (6) pass through reactor (2). The resultant product is fractionated (13). The C.sub.4 cut is recovered in the vapor phase (15) and the liquid phase recycled (16).

    摘要翻译: 选择性氢化与负载的钯催化剂接触的高丁二烯含量的C4馏分,该操作是与烃和胺混合进行的。 高丁二烯含量(1)的C4馏分和含有胺(6)的液态烃通过反应器(2)。 将所得产物分馏(13)。 在气相(15)和液相循环(16)中回收C4馏分。

    Phenol production process
    17.
    发明授权
    Phenol production process 失效
    酚醛生产工艺

    公开(公告)号:US5160497A

    公开(公告)日:1992-11-03

    申请号:US629911

    申请日:1990-12-19

    CPC分类号: C07C39/04 Y02P20/52

    摘要: Phenol production process wherein:1) benzene is reacted with propene and isopropylic alcohol by contacting a catalyst based on a dealuminized Y zeolite with a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio ranging from 8 to 70, then the obtained product is fractionated into a first fraction comprising non converted benzene, a second fraction comprising cumene and a third fraction comprising polyisopropylbenzenes,2) said third fraction is reacted with benzene by contacting a catalyst based on a dealuminized Y zeolite with a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio ranging from 8 to 70 or based on a dealuminized mordenite with a total Si/Al atomic ratio ranging from 20 to 60, and cumene is collected,3) the obtained cumene is converted into a mixture of acetone and phenol,4) the obtained acetone is at least partly hydrogenized into an isopropylic alcohol which is then recycled at least partly to stage 1.

    摘要翻译: 苯酚的制备方法,其中:1)通过使基于脱铝Y沸石的催化剂与SiO 2 / Al 2 O 3摩尔比为8至70的摩尔比使苯与丙烯和异丙醇反应,然后将所得产物分馏成不含 转化的苯,包含异丙基苯的第二馏分和包含聚异丙基苯的第三馏分; 2)所述第三馏分与苯反应,使基于脱铝Y沸石的催化剂与SiO 2 / Al 2 O 3摩尔比范围为8至70或基于 脱铝丝光沸石,总Si / Al原子比为20〜60,收集异丙基苯,3)将得到的枯烯转化成丙酮和苯酚的混合物,4)得到的丙酮至少部分氢化成异丙醇 然后将其再次回收至第一阶段。