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    Process for obtaining ethylene from ethanol
    5.
    发明授权
    Process for obtaining ethylene from ethanol 失效
    从乙醇中获得乙烯的方法

    公开(公告)号：US4670620A

    公开(公告)日：1987-06-02

    申请号：US902011

    申请日：1986-08-28

    申请人： Julia M. Jacobs ,  Pierre A. Jacobs ,  Jan B. Uytterhoeven

    发明人： Julia M. Jacobs ,  Pierre A. Jacobs ,  Jan B. Uytterhoeven

    IPC分类号： C07C1/24

    CPC分类号： C07C1/24 ,  C07C2529/40

    摘要： This invention relates to a process for obtaining ethylene from anhydrous or aqueous ethanol by means of a catalyst of the zeolite type containing a silicate of a metal M1 having a valence of 3 and 4 and a tetraedric coordination and containing possibly another charge compensating metal M2 selected among the elements of the Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, VIb, VIIb and VIII groups of the Mendeljev Table. As examples of M2 metals, the alkaline metals, the alkaline-earth metals and the lanthanides may be cited.According to the invention, anhydrous or aqueous ethanol is contacted with a catalyst of the above type, in which the ratio (M1-M2/n)/(Si+M1)(in which II is the valence of said other metal) is at most equal to 1.5%. The temperature of the catalyst and the contact time of ethanol with said catalyst are such that the conversion rate of ethanol into ethylene is about 100% and the carbon selectivity for ethylene is at least equal to about 99% by weight.

    摘要翻译： 本发明涉及一种通过含沸石型催化剂的无水或含水乙醇获得乙烯的方法，所述沸石型催化剂含有具有3价和4价的金属M1的硅酸盐和四配位并且可能含有另一种电荷补偿金属M2 在孟德尔耶夫表中的Ia，Ib，IIa，IIb，IIIa，IIIb，IVa，IVb，Va，VIb，VIIb和VIII族的元素中。 作为M2金属的实例，可以列举碱金属，碱土金属和镧系元素。 根据本发明，无水或含水乙醇与上述类型的催化剂接触，其中比率（M1-M2 / n）/（Si + M1）（其中II是所述另一种金属的化合价）处于 最多等于1.5％。 催化剂的温度和乙醇与所述催化剂的接触时间使得乙醇转化成乙烯的转化率为约100％，并且乙烯的碳选择性至少等于约99重量％。

    Elimination of trans-unsaturated fatty acid compounds by selective adsorption with zeolites
    6.
    发明授权
    Elimination of trans-unsaturated fatty acid compounds by selective adsorption with zeolites 失效
    通过选择性吸附沸石消除反式不饱和脂肪酸化合物

    公开(公告)号：US06229032B1

    公开(公告)日：2001-05-08

    申请号：US09242957

    申请日：1999-09-21

    申请人： Pierre A. Jacobs ,  Pieter J. A. Maes ,  Sabine J. Paulussen ,  Mia Tielen ,  Danny F. E. Van Steenkiste ,  Lieven K. Van Looveren

    发明人： Pierre A. Jacobs ,  Pieter J. A. Maes ,  Sabine J. Paulussen ,  Mia Tielen ,  Danny F. E. Van Steenkiste ,  Lieven K. Van Looveren

    IPC分类号： C11B310

    CPC分类号： C11C3/12 ,  A23L5/273 ,  C07C67/56 ,  C11B3/10 ,  C11B7/00 ,  C11B7/0083 ,  C11C1/005 ,  C11C1/08 ,  C07C69/533

    摘要： A novel process for the selective elimination of fatty acid compounds containing carbon-carbon double bonds in trans configuration from a substrate containing cis- and trans-isomers of said fatty acid compounds, by selective adsorption by a microporous zeolite material is disclosed. The pore size and shape of usable zeolite materials enable differentiation between cis- and trans-isomers of unsaturated fatty acid chains. The zeolite materials used have a selectivity ratio &agr;trans/cis higher than 1.00; this ratio is defined based on the elution properties of cis and trans double bond containing fatty acid methylesters dissolved in n-hexane during a column chromatography experiment with the zeolite material as the stationary phase and n-hexane as the mobile phase. Besides selective adsorption of trans-unsaturated fatty acid compounds, simultaneous or subsequent total or partial hydrogenation of the double bonds in said compounds can be carried out while using the same or similar zeolite material, containing finely dispersed catalytic active metals. The majority of these catalytic active sites must be inside the pores.

    摘要翻译： 公开了通过微孔沸石材料的选择性吸附来选择性地从含有所述脂肪酸化合物的顺式和反式异构体的底物反式构型中除去含有碳 - 碳双键的脂肪酸化合物的新方法。 可用的沸石材料的孔径和形状使得不饱和脂肪酸链的顺式和反式异构体之间能够分化。 使用的沸石材料具有高于1.00的选择比alphatrans / cis; 该比例基于在沸石材料作为固定相和正己烷作为流动相的柱色谱实验中溶解在正己烷中的顺式和反式双键的溶出性质来定义。 除了反式不饱和脂肪酸化合物的选择性吸附外，所有化合物中双键的同时或随后的全部或部分氢化可以在使用含有精细分散的催化活性金属的相同或相似的沸石材料的同时进行。 这些催化活性位点中的大部分必须在孔内。