Zeolite LZ-133
    6.
    发明授权
    Zeolite LZ-133 失效
    沸石LZ-133

    公开(公告)号:US4842836A

    公开(公告)日:1989-06-27

    申请号:US843295

    申请日:1986-03-24

    IPC分类号: B01J29/70 C01B39/48 C07C4/06

    摘要: A novel crystalline aluminosilicate composition denominated "zeolite LZ-133" or simply "LZ-133" and having uniform pore dimensions of approximately 4.3 Angstroms is prepared hydrothermally from a reaction mixture containing as essential reagents, water, alkali or alkaline earth metal oxide, alumina, silica and a quaternary ammonium compound.

    摘要翻译: 以含有作为必需试剂,水,碱金属或碱土金属氧化物的反应混合物,氧化铝,氧化铝,水合氧化铝,水热法制备了名为“沸石LZ-133”或简称为“LZ-133”并具有约4.3埃的均匀孔径的新型结晶硅铝酸盐组合物 ,二氧化硅和季铵化合物。

    Process for aqueous stream purification
    7.
    发明授权
    Process for aqueous stream purification 失效
    含水流净化方法

    公开(公告)号:US4786418A

    公开(公告)日:1988-11-22

    申请号:US167185

    申请日:1988-03-11

    IPC分类号: B01J20/34 C02F1/28

    CPC分类号: C02F1/281 B01J20/3408

    摘要: In the process for removing organic impurity constituents from aqueous media by adsorbing same on an organophilic molecular sieve adsorbent, followed by regeneration of the adsorbent by contact with an oxidant, such as hydrogen peroxide, whereby the organic adsorbate is converted to innocuous materials, principally CO.sub.2 and H.sub.2 O, the efficiency of the regeneration operation is found to be substantially improved by decreasing the pH of the regenerating medium and/or increasing the number of Bronsted acid sites in the molecular sieve adsorbent.

    摘要翻译: 在通过在有机分子筛吸附剂上吸附有机杂质成分从水介质中除去有机杂质成分的过程中,然后通过与氧化剂如过氧化氢接触再生吸附剂,由此将有机物质转化为无害物质,主要是二氧化碳 通过降低再生介质的pH和/或增加分子筛吸附剂中的布朗斯台德酸位数,发现再生操作的效率显着提高。

    Molecular sieve compositions and their use in cracking/hydrocracking
    8.
    发明授权
    Molecular sieve compositions and their use in cracking/hydrocracking 失效
    分子筛组合物及其在裂化/加氢裂化中的应用

    公开(公告)号:US4781814A

    公开(公告)日:1988-11-01

    申请号:US46396

    申请日:1987-05-06

    摘要: Crystalline molecular sieves having three-dimensional microporous framework structure of MO.sub.2, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis are expressed by the formula:mR: (M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; "M" represents at least two elements capable of forming framework tetrahedral oxides and selected from the group consisting of arsenic, beryllium, boron, chromium, gallium, germanium, lithium and vanadium; and "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed. The catalyst is useful in the cracking and hydrocracking of various hydrocarbonaceous feeds.

    摘要翻译: 公开了具有MO2,AlO2和PO2四面体氧化物单元的三维微孔骨架结构的结晶分子筛。 这些分子筛具有无水基的经验化学组成由下式表示:mR:(MxAlyPz)O 2其中“R”表示存在于晶体内孔系统中的至少一种有机模板剂; “m”表示每摩尔(M×AlyPz)O 2存在的“R”摩尔量; “M”表示能够形成骨架四面体氧化物并选自砷,铍,硼,铬,镓,锗,锂和钒的至少两种元素; 和“x”,“y”和“z”分别表示作为四面体氧化物存在的“M”,铝和磷的摩尔分数。 公开了它们作为吸附剂,催化剂等的用途。 该催化剂可用于各种烃类进料的裂化和加氢裂化。

    Modification of aluminophosphate molecular sieves by treatment with a
silicon tetrafluoride gas mixture
    10.
    发明授权
    Modification of aluminophosphate molecular sieves by treatment with a silicon tetrafluoride gas mixture 失效
    通过用四氟化硅气体混合物处理改性磷酸铝分子筛

    公开(公告)号:US4569833A

    公开(公告)日:1986-02-11

    申请号:US725503

    申请日:1985-04-24

    摘要: Described herein is a process for enhancing the hydrophobicity of crystalline molecular sieves and also crystalline molecular sieve compositions which have enhanced hydrophobic character and modified catalytic properties. The crystalline molecular sieves are contacted with a silicon tetrafluoride gas mixture at a temperature from about ambient to about 200.degree. C. to alter (1) the framework aluminum and silica content, (2) the surface characteristics, and (3) the acidic sites of the molecular sieves with resulting modification of both the adsorptive properties, i.e., enhanced hydrophobicity, and catalytic properties of the molecular sieves. The crystalline molecular sieves can further undergo ion exchange to remove any aluminum fluoride cation species such as AlF.sup.++ and AlF.sub.2.sup.+. The crystalline molecular sieve compositions of this invention are useful as selective hydrophobic adsorbents and catalysts.

    摘要翻译: 本文描述的是提高结晶分子筛疏水性的方法以及具有增强的疏水性和改性催化性能的结晶分子筛组合物。 结晶分子筛在约环境温度至约200℃的温度下与四氟化硅气体混合物接触,以改变(1)框架铝和二氧化硅含量,(2)表面特性,和(3)酸性位点 的分子筛,同时导致改性的吸附性质,即增强的疏水性和分子筛的催化性能。 结晶分子筛可以进一步进行离子交换以除去任何氟化铝阳离子物质,例如AlF ++和AlF 2 +。 本发明的结晶分子筛组合物可用作选择性疏水性吸附剂和催化剂。