Process for preparation of synthetic mazzite
    3.
    发明授权
    Process for preparation of synthetic mazzite 失效
    制备合成纤维素的方法

    公开(公告)号:US4957719A

    公开(公告)日:1990-09-18

    申请号:US332422

    申请日:1989-03-31

    IPC分类号: C01B39/04 C01B39/20 C01B39/34

    CPC分类号: C01B39/34 Y10S423/26

    摘要: Synthetic mazzite having a small particle size is advantageously prepared by making present a transparent liquid phase compound in a starting mixture containing a silica source, an alumina source, an alkali source and a tetramethylammonium source.The transparent liquid phase compound is obtained by mixing an aqueous solutuion of an alkali metal silicate, an aqueous solution of an alkali metal aluminate, an aqueous solution of an alkali metal hydroxide and a tetramethylammonium compound and aging the mixture.

    Synthesis of crystalline aluminosilicate molecular sieves
    9.
    发明授权
    Synthesis of crystalline aluminosilicate molecular sieves 失效
    结晶硅铝酸盐分子筛的合成

    公开(公告)号:US4377502A

    公开(公告)日:1983-03-22

    申请号:US218276

    申请日:1980-12-19

    申请人: Marvin R. Klotz

    发明人: Marvin R. Klotz

    摘要: Crystalline aluminosilicate molecular sieves are prepared by (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal or ammonium cation and a suitable oxygen-containing monomeric organic template compound, (2) maintaining the pH of such mixture between 9 and 14, and (3) crystallizing the mixture. The organic templates include ethanolamine, diethanolamine, triethanolamine, ethylethanolamine, ethyldiethanolamine, 2-amino-2-ethyl-1,3-propanediol, morpholine, and alkali metal complexed tetrahydrofuran, dioxane, dioxolane, and crown ethers. Crystalline aluminosilicates prepared include mordenite, ferrierite, ZSM-4, and ZSM-5.

    摘要翻译: 通过(1)形成铝的氧化物,硅的氧化物,金属或铵阳离子和合适的含氧单体有机模板化合物的水性混合物制备结晶硅铝酸盐分子筛,(2)保持这种混合物的pH 在9和14之间,和(3)使混合物结晶。 有机模板包括乙醇胺,二乙醇胺,三乙醇胺,乙基乙醇胺,乙基二乙醇胺,2-氨基-2-乙基-1,3-丙二醇,吗啉和碱金属络合的四氢呋喃,二恶烷,二氧戊环和冠醚。 制备的结晶硅铝酸盐包括丝光沸石,镁碱沸石,ZSM-4和ZSM-5。

    Preparation of zeolites
    10.
    发明授权
    Preparation of zeolites 失效
    沸石的制备

    公开(公告)号:US4091007A

    公开(公告)日:1978-05-23

    申请号:US627158

    申请日:1975-10-30

    摘要: An improved method for preparing a crystalline aluminosilicate zeolite having uniform pores and greater than 40 percent crystallinity which comprises forming a critical reaction mixture containing a source of at least two cations, silica, alumina and water, wherein at least about 70 weight percent of the alumina is provided to the reaction mixture by an alumina-containing clay being added thereto, and maintaining the reaction mixture at a temperature and pressure for a time necessary to crystallize the crystalline aluminosilicate from the reaction mixture. It is desirable to preform said reaction mixture into discrete particles such as pellets or extrudates which retain their shape and acquire substantial strength in the crystallization process.

    摘要翻译: 一种制备具有均匀孔和大于40%结晶度的结晶硅铝酸盐沸石的改进方法,其包括形成含有至少两种阳离子源,二氧化硅,氧化铝和水的临界反应混合物,其中至少约70重量%的氧化铝 通过向其中加入的含氧化铝粘土提供给反应混合物,并将反应混合物保持在温度和压力下使反应混合物中结晶硅铝酸盐结晶所需的时间。 期望将所述反应混合物预制成离散的颗粒,例如颗粒或挤出物,其保持其形状并在结晶过程中获得显着的强度。