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    Exchanged zeolites X, in particular exchanged with lithium, their process of preparation and their use as adsorbents of nitrogen in the separation of the gases of the air
    3.
    发明授权
    Exchanged zeolites X, in particular exchanged with lithium, their process of preparation and their use as adsorbents of nitrogen in the separation of the gases of the air 失效
    交换的沸石X，特别是与锂交换，它们的制备方法及其作为气体分离中的氮气吸附剂的用途

    公开(公告)号：US06806219B2

    公开(公告)日：2004-10-19

    申请号：US09752560

    申请日：2001-01-03

    Applicant: Jean-Jacques Masini ,  Dominique Plee

    Inventor： Jean-Jacques Masini ,  Dominique Plee

    IPC: B01D53047

    CPC classification number: C01B39/026 ,  B01J20/186 ,  Y10S95/902 ,  Y10S423/21

    Abstract: The present invention relates to zeolites X, most of the exchangeable sites of which are occupied by lithium and di- and/or trivalent cations, having an improved thermal stability and an improved crystallinity with respect to zeolites of the prior art with the same degree of exchange of lithium and of di- and/or trivalent cations. The zeolites of the present invention are particularly effective as adsorbents of the nitrogen present in various gas mixtures and are well suited to the noncryogenic separation of the gases of the air.

    Abstract translation: 本发明涉及沸石X，其大部分可交换的位置被锂和二价和/或三价阳离子所占据，具有改进的热稳定性和相对于现有技术的沸石的改善的结晶度，具有相同程度的 锂和二价和/或三价阳离子的交换。 本发明的沸石作为各种气体混合物中存在的氮的吸附剂是特别有效的，并且非常适合于空气气体的非高温分离。

    Molecular sieves of faujasite structure
    4.
    发明申请
    Molecular sieves of faujasite structure 失效
    八面沸石结构分子筛

    公开(公告)号：US20030044350A1

    公开(公告)日：2003-03-06

    申请号：US10164926

    申请日：2002-06-07

    Inventor： Yiu Lau Lam ,  Alvaro Saavedra ,  Alexandre de Figueiredo Costa ,  Anselmo da Silva Santos ,  Gustavo Torres Moure ,  Rodolfo Eugenio Roncolatto ,  Dennis Stamires ,  Paul O'Connor

    IPC: C01F007/00 ,  C01B033/36 ,  C01B039/00

    CPC classification number: C10G11/05 ,  B01J29/084 ,  C01B39/24 ,  C10G49/08 ,  Y10S423/21

    Abstract: A process for preparing molecular sieves of type Y faujasite structure is described, as well as pre-shaped bodies of faujasite structure type Y molecular sieves. The process comprises preparing a precursor gel from a source of silica-alumina or a source of alumina and a source of silica with a template agent at a SiO2/Al2O3 greater than 7 and suitable for forming a type Y zeolite, drying the precursor gel and contacting the dried precursor gel with steam, optionally followed by caustic washing, without the formation of crystalline phases other than type Y zeolite being observed. Advantageously, the pre-shaped bodies prepared with the precursor gel of Y zeolite, when subjected to the process of the invention, will have their outer surface covered by type Y zeolite crystals. The molecular sieves so obtained may be employed as catalysts or adsorbents in various processes of the chemical or oil industry.

    Abstract translation: 描述了制备Y型八面沸石结构的分子筛的方法，以及Y型分子筛的八面沸石结构体的预制体。 该方法包括从二氧化硅 - 氧化铝源或氧化铝源和二氧化硅源以二氧化硅/ Al 2 O 3大于7的模板剂制备前体凝胶并适于形成Y型沸石，干燥前体凝胶和 使干燥的前体凝胶与蒸汽接触，任选地随后进行苛性碱洗涤，而不形成除Y型沸石以外的结晶相。 有利的是，当用Y沸石的前体凝胶制备的预制体在进行本发明的方法时，其外表面将被Y型沸石晶体覆盖。 如此获得的分子筛可用作化学或石油工业的各种方法中的催化剂或吸附剂。

    Macroscopic aggregates of microcrystalline zeolites
    5.
    发明申请
    Macroscopic aggregates of microcrystalline zeolites 审中-公开
    微晶沸石的宏观聚集体

    公开(公告)号：US20020198131A1

    公开(公告)日：2002-12-26

    申请号：US10196943

    申请日：2002-07-18

    Inventor： Steven M. Kuznicki ,  Tadeusz W. Langner ,  Jacqueline S. Curran ,  Valerie A. Bell

    IPC: C11D017/00

    CPC classification number: C01B39/02 ,  C11D3/128 ,  Y10S423/21 ,  Y10S423/24

    Abstract: This invention relates to zeolitic molecular sieve compositions and hybrid zeolite-silica compositions characterized by novel morphology in which the zeolite is present as macroscopic aggregates of microcrystalline zeolite. The zeolitic compositions of this invention have outstanding capability to complex multivalent cations, especially calcium due to the high exchange kinetics of the microcrystalline zeolite component and yet have the ease of handling due to the macroscopic aggregate assemblage.

    Abstract translation: 本发明涉及沸石分子筛组合物和混合沸石 - 二氧化硅组合物，其特征在于新颖的形态，其中沸石作为微晶沸石的宏观聚集体存在。 由于微晶沸石组分的高交换动力学，本发明的沸石组合物具有突出的复合多价阳离子，特别是钙的能力，并且由于宏观聚集体组合而具有易于处理的能力。

    Crystalline phosphorus-containing molecular sieves
    6.
    发明申请
    Crystalline phosphorus-containing molecular sieves 失效

    公开(公告)号：US20020136687A1

    公开(公告)日：2002-09-26

    申请号：US10087101

    申请日：2002-02-28

    Inventor： Stephen J. Miller

    IPC: C07C001/00

    CPC classification number: C01B37/08 ,  B01D53/944 ,  B01J29/85 ,  B01J2229/36 ,  C01B37/002 ,  Y10S423/21 ,  Y10S423/30

    Abstract: Molecular sieves comprising (1) phosphorus oxide; (2) a first oxide comprising an oxide of silicon, germanium or mixtures thereof; and (3) a second oxide comprising an oxide of aluminum, boron or mixtures thereof, said molecular sieve having a mole ratio of the first oxide to the second oxide of greater than 1, containing at least about 10 weight percent phosphorus oxide in the crystal framework, and having pores greater than 5 null in diameter are useful as catalysts in hydrocarbon conversion reactions.

    Fine low silica faujasite type zeolite and process for its production
    8.
    发明授权
    Fine low silica faujasite type zeolite and process for its production 有权
    细二氧化硅八面沸石型沸石及其生产工艺

    公开(公告)号：US06306363B1

    公开(公告)日：2001-10-23

    申请号：US09320830

    申请日：1999-05-26

    Applicant: Hajime Funakoshi ,  Yoshinori Shirakura

    Inventor： Hajime Funakoshi ,  Yoshinori Shirakura

    IPC: C01B3922

    CPC classification number: C01B39/22 ,  Y10S423/21

    Abstract: A fine low silica faujasite type zeolite of high purity, having a faujasite single phase as measured by X-ray diffractometry, wherein the SiO2/Al2O3 molar ratio is from 1.9 to 2.1, the water adsorption in the form of Na-type is at least 35.0%, and the primary particle size is at least 0.05 &mgr;m and less than 1.0 &mgr;m. A process for producing the low silica faujasite type zeolite by mixing and gelling a solution containing an aluminate and a solution containing a silicate, followed by aging and crystallization, wherein after the gelling and/or at the initial stage of the aging, a solution having a set composition and preliminary aged at recited conditions is added in an amount of from 0.03 to 10% as Al2O3.

    Abstract translation: 通过X射线衍射测定的具有八面沸石单相的高纯度的微细二氧化硅八面沸石型沸石，其中SiO 2 / Al 2 O 3摩尔比为1.9〜2.1，Na型形式的水吸附至少为 35.0％，一次粒径为0.05μm以上且小于1.0μm。 通过混合和胶凝含有铝酸盐和含硅酸盐的溶液，随后进行老化和结晶的方法来制备低硅石八面沸石型沸石，其中在老化和/或在初始阶段之后，将具有 在所述条件下的组合物和预熟化作为Al 2 O 3以0.03至10％的量加入。

    Hydrothermal conversion of Y-zeolite using alkaline earth cations
    9.
    发明授权
    Hydrothermal conversion of Y-zeolite using alkaline earth cations 失效
    使用碱土金属阳离子水热转化Y-沸石

    公开(公告)号：US06187283B1

    公开(公告)日：2001-02-13

    申请号：US09357199

    申请日：1999-07-20

    Applicant: Osamu Chiyoda ,  Mark E. Davis

    Inventor： Osamu Chiyoda ,  Mark E. Davis

    IPC: C01B3902

    CPC classification number: C01B39/26 ,  C01B39/02 ,  C01B39/026 ,  C01B39/28 ,  C01B39/46 ,  Y10S423/21

    Abstract: Hydrothermal synthesis of the natural, alkaline earth zeolites via the alteration of Y-zeolite is presented. Synthetic versions of the zeolites harmotome, heulandite, brewsterite and gmelinite are synthesized from Y-zeolite using alkaline earth cations containing solutions. The effect of the composition of the starting zeolite, the composition of the solution phase, the presence or absence of seeds and the experimental conditions are discussed.

    Abstract translation: 提出了通过改变Y-沸石水热合成天然碱土沸石。 使用含碱性阳离子的溶液，由Y-沸石合成沸石的合成版本，胡萝卜素，brewsterite和gmelinite。 讨论了起始沸石的组成，溶液相的组成，种子的存在或不存在以及实验条件的影响。

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