Zeolite synthesis
    22.
    发明授权
    Zeolite synthesis 失效
    沸石合成

    公开(公告)号:US4275047A

    公开(公告)日:1981-06-23

    申请号:US817674

    申请日:1977-07-21

    CPC classification number: C01B39/38 C01B39/365 C01B39/42 Y10S423/22 Y10S423/29

    Abstract: Whereas previously zeolites of the ZSM-5 family have been synthesized in reaction mixtures in which the presence of alkylammonium ions was considered to be essential, the use of such ions can be avoided if the mixture contains a seed zeolite having a port diameter in the range 5.8 to 7.0. The seed zeolite need not be a member of the ZSM-5 family but can be, for example zeolite nu-1 which has a distinctly different structure. The reaction mixture preferably is limited in alkalinity and preferably contains strong acid anions.

    Abstract translation: 尽管之前已经在烷基铵离子的存在被认为是必需的反应混合物中合成了ZSM-5族的先前沸石,但是如果混合物含有口径在该范围内的种子沸石,则可以避免使用这种离子 5.8至7.0。 种子沸石不需要是ZSM-5族的成员,而是可以是例如具有明显不同结构的沸石nu-1。 反应混合物优选碱度有限,优选含有强酸性阴离子。

    METHOD FOR PRODUCING MTW-TYPE ZEOLITE

    公开(公告)号:US20160200585A1

    公开(公告)日:2016-07-14

    申请号:US15079998

    申请日:2016-03-24

    CPC classification number: C01B39/42 B01J20/3078 B01J29/7034

    Abstract: The method for producing an MTW-type zeolite according to the present invention includes: mixing a silica source, an alumina source, an alkali source, a lithium source, and water so as to obtain a reaction mixture having a composition represented by specific molar ratios; (2) adding an MTW-type zeolite which has a SiO2/Al2O3 ratio of 10 to 500 and does not contain an organic compound, as a seed crystal, to the reaction mixture in a proportion of 0.1 to 20% by weight relative to the silica component in the reaction mixture; and (3) airtightly heating the reaction mixture, to which the seed crystal has been added, at 100 to 200° C.

    Method for producing MTW-type zeolite
    25.
    发明授权
    Method for producing MTW-type zeolite 有权
    生产MTW型沸石的方法

    公开(公告)号:US09333495B2

    公开(公告)日:2016-05-10

    申请号:US13509677

    申请日:2010-11-19

    CPC classification number: C01B39/42 B01J20/3078 B01J29/7034

    Abstract: A method for producing an MTW-type zeolite, comprising (1) mixing an alumina source, an alkali source, a lithium source, and water so as to obtain a reaction mixture (2) Adding a seed crystal of an MTW-type zeolite before or while a silica source is added to the reaction mixture in a proportion of 0.1 to 20% by weight relative to the silica component in the reaction mixture. Mixing and stirring the reaction mixture. Wherein the MTW-type zeolite of the seed crystal has a SiO2/Al2O3 ratio of 10 to 500 and does not contain an organic compound. The reaction mixture has a composition represented by the following molar ratios: SiO2/Al2O3=12 to 200, Na2O/SiO2=0.1 to 0.3, Li2O/(Na2O+Li2O)=0.05 to 0.5 and H2O/SiO2=10 to 50. (3) Air tightly heating the reaction mixture, to which the seed crystal of the MTW type zeolite has been added, at 100 to 200° C.

    Abstract translation: 一种生产MTW型沸石的方法,包括(1)将氧化铝源,碱源,锂源和水混合以获得反应混合物(2)在MTW型沸石之前加入MTW型沸石的晶种 或者相对于反应混合物中的二氧化硅组分,以0.1至20重量%的比例将二氧化硅源加入到反应混合物中。 混合搅拌反应混合物。 其中晶种的MTW型沸石的SiO 2 / Al 2 O 3比例为10〜500,不含有机化合物。 反应混合物具有以下摩尔比表示的组成:SiO 2 / Al 2 O 3 = 12〜200,Na 2 O / SiO 2 = 0.1〜0.3,Li 2 O /(Na 2 O + Li 2 O)= 0.05〜0.5,H 2 O / SiO 2 = 10〜50 3)在100〜200℃下,将加入MTW型沸石的晶种的反应混合物气密加热

    Synthesis of ZSM-5 crystals with improved morphology
    26.
    发明授权
    Synthesis of ZSM-5 crystals with improved morphology 有权
    具有改进形态的ZSM-5晶体的合成

    公开(公告)号:US09289755B2

    公开(公告)日:2016-03-22

    申请号:US14063295

    申请日:2013-10-25

    CPC classification number: B01J29/40 B01J20/18 B01J20/3085 C01B39/40 C01B39/42

    Abstract: Methods are provided for synthesizing crystals having a ZSM-5 framework structure from synthesis mixtures suitable for synthesis of ZSM-12 framework structure crystals in the absence of seed crystals with a ZSM-5 framework structure, such as in the absence of any seed crystals. For synthesis mixtures with a sufficiently high XO2:Y2O3 ratio, seeding a synthesis mixture with ZSM-5 seed crystals can result in production of pure phase ZSM-5 crystals with a new morphology. The morphology can include rod-like primary crystallites with a length of about 0.5 μm or less that are organized/aggregated into larger secondary crystal structures. The aggregation of the primary crystallites into a secondary crystal structure can allow for an unexpectedly large mesoporous surface area for the ZSM-5 crystals.

    Abstract translation: 在不存在任何种晶的ZSM-5骨架结构的晶种的情况下,提供了合成具有ZSM-5骨架结构的晶体的方法,该合成混合物适用于合成ZSM-12骨架结构晶体。 对于具有足够高的XO2:Y2O3比例的合成混合物,用ZSM-5晶种接种合成混合物可导致产生具有新形态的纯相ZSM-5晶体。 该形态可以包括长度约0.5μm或更小的棒状初级微晶,其被组织/聚集成更大的二次晶体结构。 主晶体聚集成二次晶体结构可以使ZSM-5晶体出现意想不到的大的介孔表面积。

    Method for producing MTW-type zeolite
    27.
    发明授权
    Method for producing MTW-type zeolite 有权
    生产MTW型沸石的方法

    公开(公告)号:US08834836B2

    公开(公告)日:2014-09-16

    申请号:US13980765

    申请日:2012-01-17

    CPC classification number: C01B39/46 C01B39/42

    Abstract: Provided is a method for producing an MTW-type zeolite. The reaction mixture contains a silica source, an alumina source, an alkali source, and water is reacted with a seed crystal of a zeolite to produce an MTW-type zeolite. The reaction mixture has a composition, which makes a synthesized zeolite contain an MFI-type zeolite when the zeolite is synthesized solely from the reaction mixture, is used. As the seed crystal, a beta-type zeolite which has a ratio of SiO2/Al2O3 of 8 to 50 and does not contain a structure direction agent is used. The seed crystal is added to the reaction mixture, in a proportion of 0.1% by mass to 20% by mass based on a silica component in the reaction mixture. The reaction mixture to which the seed crystal has been added is heated at 100° C. to 200° C. in a sealed state.

    Abstract translation: 提供了一种MTW型沸石的制造方法。 反应混合物含有二氧化硅源,氧化铝源,碱源,水与沸石晶种反应生成MTW型沸石。 反应混合物具有组合物,当使用仅由反应混合物合成沸石时,使合成的沸石含有MFI型沸石。 作为晶种,使用SiO 2 / Al 2 O 3的比例为8〜50,不含结构方向试剂的β型沸石。 相对于反应混合物中的二氧化硅成分,将该晶种以0.1质量%〜20质量%的比例添加到反应混合物中。 已加入晶种的反应混合物在密封状态下在100℃加热至200℃。

    METHOD FOR PRODUCING MTW-TYPE ZEOLITE
    28.
    发明申请
    METHOD FOR PRODUCING MTW-TYPE ZEOLITE 有权
    生产MTW型沸石的方法

    公开(公告)号:US20130156689A1

    公开(公告)日:2013-06-20

    申请号:US13509677

    申请日:2010-11-19

    CPC classification number: C01B39/42 B01J20/3078 B01J29/7034

    Abstract: The method for producing an MTW-type zeolite according to the present invention includes: mixing a silica source, an alumina source, an alkali source, a lithium source, and water so as to obtain a reaction mixture having a composition represented by specific molar ratios; (2) adding an MTW-type zeolite which has a SiO2/Al2O3 ratio of 10 to 500 and does not contain an organic compound, as a seed crystal, to the reaction mixture in a proportion of 0.1 to 20% by weight relative to the silica component in the reaction mixture; and (3) airtightly heating the reaction mixture, to which the seed crystal has been added, at 100 to 200° C.

    Abstract translation: 根据本发明的MTW型沸石的制造方法包括:将二氧化硅源,氧化铝源,碱源,锂源和水混合,得到具有以比摩尔比表示的组成的反应混合物 ; (2)将SiO 2 / Al 2 O 3比例为10〜500,并且不含作为晶种的有机化合物的MTW型沸石相对于反应混合物的比例为0.1〜20重量% 反应混合物中的二氧化硅组分; 和(3)在100〜200℃下将加入了晶种的反应混合物气密加热

    High activity small crystal ZSM-12
    29.
    发明申请
    High activity small crystal ZSM-12 有权
    高活性小晶体ZSM-12

    公开(公告)号:US20110118520A1

    公开(公告)日:2011-05-19

    申请号:US12590952

    申请日:2009-11-17

    Abstract: A porous, crystalline material is described having the framework structure of ZSM-12 and a composition involving the molar relationship: X2O3:(n)YO2 wherein X is a trivalent element, Y is a tetravalent element and n is less than about 45, e.g., less than about 40, wherein the average crystal size of the material is less than about 0.1 micron, which material is substantially free of impurities. The material is made by: (a) preparing a mixture capable of forming said material, said mixture comprising sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), hydroxyl (OH−) ions, water, and an organic monoquaternary ammonium cation directing agent (R) and an organic diquaternary ammonium structure blocking agent (R′); (b) maintaining the mixture under sufficient conditions until crystals of said material are formed; and (c) recovering the crystalline material from step (ii). The material can be used as a hydrocarbon conversion process catalyst.

    Abstract translation: 描述了具有ZSM-12的骨架结构和涉及摩尔关系的组成的多孔结晶材料:X 2 O 3:(n)YO 2其中X是三价元素,Y是四价元素,n小于约45,例如 小于约40,其中材料的平均晶体尺寸小于约0.1微米,该材料基本上不含杂质。 该材料通过以下制备:(a)制备能够形成所述材料的混合物,所述混合物包含碱金属或碱土金属(M),三价元素(X)的氧化物,四价元素(Y)的氧化物, 羟基(OH-)离子,水和有机单季铵阳离子导向剂(R)和有机二季铵结构封闭剂(R'); (b)将混合物保持在足够的条件下,直到形成所述材料的晶体; 和(c)从步骤(ii)中回收结晶物质。 该材料可用作烃转化工艺催化剂。

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