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    Process for preparing a wide-pore adsorbent for use in chromatography
    4.
    发明授权
    Process for preparing a wide-pore adsorbent for use in chromatography 失效
    制备用于色谱法的宽孔吸附剂的方法

    公开(公告)号：US3869409A

    公开(公告)日：1975-03-04

    申请号：US26073472

    申请日：1972-06-08

    Applicant: BEBRIS NATALYA KARLOVNA ,  KISELEV ANDREI VLADIMIROVICH ,  NIKITIN JURY STEPANOVICH ,  YASHIN YAKOV IVANOVICH

    Inventor： BEBRIS NATALYA KARLOVNA ,  KISELEV ANDREI VLADIMIROVICH ,  NIKITIN JURY STEPANOVICH ,  YASHIN YAKOV IVANOVICH

    IPC: B01J20/10 ,  C01B33/16 ,  B01J11/06 ,  B01J11/36

    CPC classification number: C01B33/16 ,  B01J20/103

    Abstract: A process for preparing a wide-pore adsorbent for chromatography comprising preparing a suspension of a fine disperse non-porous silica having a specific surface area S of from 30 to 380 m2/g. while modifying the silica surface. At this stage of the suspension preparation water is employed as a dispersion medium, while as a modifying component use is made of an alkali, a salt of an alkali or alkali-earth metal, or carbon black, or an organic solvent is employed as a liquid dispersion medium, while as a modifying component use is made of polyphenyldisiloxane or a polycondensation product of phenolphthalein and phthalic acid. Said suspension is subjected to drying at a temperature of from 15 to 200*C. The resulting silica xerogel is ground. The process according to the present invention makes it possbile to vary, within broad limits; adsorptive and chromatographic properties of the adsorbent being produced and to regulate, over a wide range, its selectivity. This, in turn, enables the use of the adsorbent for seperating mixtures of organic compounds of different classes.

    Abstract translation: 一种制备用于色谱的宽孔吸附剂的方法，包括制备比表面积S为30至380m 2 / g的细分散无孔二氧化硅的悬浮液。 同时改性二氧化硅表面。 在该悬浮液的这个阶段中，使用水作为分散介质，而作为改性成分，使用碱，碱金属或碱土金属或碳黑的盐或有机溶剂作为 液体分散介质，而作为改性成分的使用由聚苯基二硅氧烷或酚酞和邻苯二甲酸的缩聚产物制成。 将所述悬浮液在15-200℃的温度下进行干燥。研磨所得二氧化硅干凝胶。 根据本发明的方法使其可以在宽范围内变化; 生产的吸附剂的吸附和色谱性质，并在很大范围内调节其选择性。 这又反过来使得能够使用吸附剂来分离不同类别的有机化合物的混合物。

    Process for the preparation of catalysts containing crystalline aluminosilicate zeolites
    5.
    发明授权
    Process for the preparation of catalysts containing crystalline aluminosilicate zeolites 失效
    制备含有水杨酸铝沸石的催化剂的方法

    公开(公告)号：US3714072A

    公开(公告)日：1973-01-30

    申请号：US3714072D

    申请日：1970-06-04

    Applicant: KOMINKLIJKE ZWAVELZUURFAB VOOR

    Inventor： MAAT H ,  BERG A

    IPC: B01J29/08 ,  B01J11/36 ,  B01J11/40

    CPC classification number: B01J29/088 ,  B01J29/084

    Abstract: AN AQUEOUS SUSPENSION OF A ZEOLITE, WHICH HAS HAD ITS ALKALI METAL CONTENT REDUCED BY AT LEAST ONE ION EXCHANGE REACTION AND HAS THEN BEEN THERMALLY METAL SILICATE COMBINED WITH AN AQUEOUS ALKALINE ALKALI METAL SILICATE SOLUTION, AND SILICON DIOXIDE IS GELLED FROM THE ZEOLITE CONTAINING SOLUTION BY THE ADDITION OF MINERAL ACID, PREFERABLY TO THE SILICATE SOLUTION IMMEDIATELY BEFORE THE COMBINING OF THE LATTER WITH THE ZEOLITE SUSPENSION. THE RESULTING ZEOLITE-CONTAINING GEL IS COMBINED WITH A SOLUTION OR SOLUTIONS OF AT LEAST ONE COMPOUND OF A METAL FROM GROUPS II-A, III-A AND IV-A OF THE PERIODIC TABLE, AND THEN HYDROLYZED, WHEREUPON THE ZEOLITE CONTAINING PRECIPATE IS WASHED AND DRIED TO PROVIDE A CATALYST CONTAINIMG A CRYSTALLINE ALUMINOSILICATE ZEOLITE, SILICON DIOXIDE AND AN OXIDE OF AT LEAST ONE METAL FROM THE MENTIONED GROUPS OF THE PERIODIC TABLE.

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