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    Tetramethyltetrahydronaphthalene purification process
    1.
    发明授权
    Tetramethyltetrahydronaphthalene purification process 失效
    四甲基四氢萘纯化工艺

    公开(公告)号：US4695671A

    公开(公告)日：1987-09-22

    申请号：US902786

    申请日：1986-09-02

    申请人： Raymond L. Cobb

    发明人： Raymond L. Cobb

    IPC分类号： C07C7/171 ,  C07C13/48 ,  C07C15/20

    CPC分类号： C07C13/48 ,  C07C7/171

    摘要： An improved process for the removal of by-product amounts of undesirable aromatic hydrocarbon compounds from a mixture comprised of such compounds and predominantly tetramethyltetrahydronaphthalene is provided. In accordance with the process the mixture is contacted with a concentrated sulfuric acid solution whereby the undesirable aromatic hydrocarbons are dissolved therein and the acid phase containing said hydrocarbons is removed from the mixture.

    摘要翻译： 提供了一种用于从由这些化合物和主要由四甲基四氢萘组成的混合物中除去副产物量的不需要的芳烃化合物的改进方法。 根据该方法，将混合物与浓硫酸溶液接触，由此不需要的芳族烃溶解在其中，并且从混合物中除去含有所述烃的酸相。

    Process for separating isobutylene from C.sub.4 hydrocarbon mixtures
    2.
    发明授权
    Process for separating isobutylene from C.sub.4 hydrocarbon mixtures 失效
    从C（HD 4 {L烃混合物）中分离异丁烯的方法

    公开(公告)号：US3979474A

    公开(公告)日：1976-09-07

    申请号：US532674

    申请日：1974-12-13

    申请人： Willy Zerrweck

    发明人： Willy Zerrweck

    IPC分类号： C07C7/10 ,  C07C1/00 ,  C07C7/17 ,  C07C7/171 ,  C07C11/08 ,  C07C11/09 ,  C07C67/00

    CPC分类号： C07C7/171 ,  Y10S585/934

    摘要： An improvement in the process for separating isobutylene from a mixture of C.sub.4 hydrocarbon by extracting with sulfuric acid, characterized in that the C.sub.4 hydrocarbon mixture is extracted at a temperature between about 30.degree. and 45.degree.C by means of about 40 - 55 percent by weight sulfuric acid in a first stage, whereupon the extract thus obtained is converted into isobutylene and into sulfuric acid, the residual mixture of C.sub.4 hydrocarbons after separating the entrained tertiary butyl alcohol is extracted in a second stage at a temperature between about 10.degree. and 25.degree.C by means of about 60 - 70 percent by weight sulfuric acid, the extract thus obtained being separated into sulfuric acid and into hydrocarbons (dimers and trimers).

    摘要翻译： 通过用硫酸萃取从C4烃的混合物中分离异丁烯的方法的改进，其特征在于C4烃混合物在约30-45℃的温度下通过约40-55重量％ 硫酸在第一阶段中，由此获得的提取物转化为异丁烯并进入硫酸，分离夹带的叔丁醇后的C4烃的残留混合物在第二阶段在约10°至25°的温度下萃取 通过约60-70重量％的硫酸，将由此获得的提取物分离成硫酸并转化成烃（二聚体和三聚体）。

    Process for acid treating of olefins
    3.
    发明授权
    Process for acid treating of olefins 失效
    油脂酸处理工艺

    公开(公告)号：US3758608A

    公开(公告)日：1973-09-11

    申请号：US3758608D

    申请日：1971-08-26

    申请人： TEXACO INC

    发明人： RIGDON O ,  MACALUSO A ,  POWERS W

    IPC分类号： B01D15/00 ,  B01J20/30 ,  C07C1/00 ,  C07C7/00 ,  C07C7/12 ,  C07C7/171 ,  C07C11/02 ,  C07C67/00 ,  C07C11/12

    CPC分类号： C07C7/005 ,  C07C7/171 ,  C07C11/02

    摘要： Olefins, such as C5 to C30 olefins formed by thermal cracking of long chain normal paraffins, are subjected to acid treatment by contacting the olefins in liquid phase at a temperature of about 0* to about 225*F. and, preferably, from about 50* to about 100*F., with an adsorbent supported sulfuric acid composition. The process can be conducted, for example, by passing the olefin in liquid phase through a bed of free-flowing, granular, solid adsorbent supported sulfuric acid composition prepared, for example, by contacting an adsorbent, such as silica gel, with sulfuric acid. The spent treating composition can be conveniently reclaimed by burning off the accumulation of adsorbed materials or through solvent action and the recovered silica gel reused in preparing an additional amount of the silica gel supported sulfuric acid material. The acid treated olefins are highly useful for production of olefin sulfonate detergents having an improved color.

    摘要翻译： 通过使长链正链烷烃的热裂解形成的烯烃，例如通过长链正构链烷烃的热裂解形成的C5至C30烯烃，通过使液相中的烯烃在约0至约225°F的温度下接触进行酸处理，优选约50 DEG至约100°F，用吸附剂负载的硫酸组合物。 该方法可以例如通过将液相中的烯烃通过例如通过使诸如硅胶的吸附剂与硫酸接触而制备的自由流动的，颗粒状，固体吸附剂负载型硫酸组合物的床 。 废处理组合物可以通过烧掉吸附材料的积累或通过溶剂作用方便地回收，并且回收的硅胶重新用于制备另外量的硅胶负载的硫酸材料。 酸处理的烯烃对于生产具有改进颜色的烯烃磺酸盐洗涤剂非常有用。