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    Process for the preparation of molecular sieve-shaped bodies
    1.
    发明授权
    Process for the preparation of molecular sieve-shaped bodies 失效
    分子筛形体的制备方法

    公开(公告)号：US3894964A

    公开(公告)日：1975-07-15

    申请号：US37710373

    申请日：1973-07-06

    Applicant: DEGUSSA

    Inventor： ROEBKE WOLFGANG ,  MEYER-SIMON EUGEN ,  KNEITEL DIETER ,  PARR ERFRIED

    IPC: B01J2/14 ,  B01J2/28 ,  B01J20/18 ,  C01B39/00 ,  C01B39/02 ,  B01J11/44 ,  B01J11/40

    CPC classification number: B01J2/28 ,  B01J2/14 ,  B01J20/183

    Abstract: Shaped bodies of a molecular sieve zeolite having an improved mechanical hardness greater than 5 kp are produced by spraying an unstable silicic acid sol as the binder on to a zone of the rotating plate of a granulating device and concurrently applying the pulverized zeolite particles to another zone of the rotating plate, while avoiding the formation of a plastic mass, and the thus produced shaped bodies are dried and activated according to the disclosed process. The unstable silicic acid sol has a silicic acid content greater than 10 percent by weight and a BET surface greater than 150 m2/g.

    Abstract translation: 通过将不稳定的硅酸溶胶作为粘合剂喷雾到造粒装置的旋转板的区域上并且将粉碎的沸石颗粒施加到另一区域来制备具有大于5kp的改善的机械硬度的分子筛沸石的成形体 同时避免形成塑料块，并且根据所公开的方法将如此生产的成形体干燥并活化。 不稳定的硅酸溶胶的硅酸含量大于10重量％，BET表面积大于150m 2 / g。

    CRYSTALLINE ZEOLITE POWDER OF TYPE A (II)
    2.
    发明授权
    CRYSTALLINE ZEOLITE POWDER OF TYPE A (II) 失效

    公开(公告)号：KR840001806B1

    公开(公告)日：1984-10-20

    申请号：KR770002638

    申请日：1977-11-11

    Applicant: DEGUSSA

    Inventor： STRACK HANS ,  ROEBKE WOLFGANG ,  KNEITEL DIETER ,  PARR EBERFRIED

    IPC: C01B33/28

    Abstract: Crystalline zeolite powder of type A(II) is prepared from an NaOH soln. (1), an alkali silicate soln.(2), and an alkali aluminate soln.(3) of Al2O3 and Na2O. The product has a composition of 1.0±0.2 M2/nO : Al2O3 : 1.85±0.5 SiO2.yH2O, where M = metallic cation, n = atomic value, and y = number up to 6. 50 wt.% of a powder having a size less than 4.8.μ (1) is heated up to 30-100≦̸C; (2) is introduced for 10-200 min.; (3) at a temp. of 30-100≦̸C is mixed with the soln.; and the soln. mixture is crystallized at a temp. of 20-115≦̸C for more than 15 min.

    CRYSTALLINE ZEOLITE POWDER OF TYPE A (VII)
    3.
    发明授权
    CRYSTALLINE ZEOLITE POWDER OF TYPE A (VII) 失效

    公开(公告)号：KR840001807B1

    公开(公告)日：1984-10-20

    申请号：KR770002642

    申请日：1977-11-10

    Applicant: DEGUSSA

    Inventor： STRACK HANS ,  ROEBKE WOLFGANG ,  KNEITEL DIETER ,  PARR EBERFRIED

    IPC: C01B33/28

    Abstract: Crystalline zeolite powder of tyep A(IV) is prepared from H2O(1), a sodium aluminate soln.(2) of Na2O and Al2O3, and a sodium silicate soln.(3) of Na2O and SiO2. The crystallized product in a gel contg. the premixture has a compsn. of 1.0±0.2 M2/nO : Al2O3 : 1.85±0.5 SiO2.yH2O, where M = sodium cation, n = atomic value, and y = number up to 6. 50 wt.% of a powder having a size less than 5.0μ . The compsn. of the premixture is SiO2/ Al2O3)= 2 - 50 : 1, Na2O/SiO2 = 0.2 - 20 : 1, and H2O/Na2O = 4-300 : 1.

    CRYSTALLINE ZEOLITE POWDER OF TYPE A(I)
    4.
    发明授权
    CRYSTALLINE ZEOLITE POWDER OF TYPE A(I) 失效

    公开(公告)号：KR850000093B1

    公开(公告)日：1985-02-22

    申请号：KR770002637

    申请日：1977-11-10

    Applicant: DEGUSSA

    Inventor： STRACK HANS ,  KNEITEL DIETER ,  ROEBKE WOLFGANG ,  PARR EHRFRIED

    IPC: C01B33/28

    Abstract: Crystalline zeolite powder of type A(I) is prepared from heated sodium silicate soln. (1) by mixing it with sodium aluminate soln. (2) in two stages. The product, having a composition of 1.0±0.2 M2/nO: Al2O3: 1.85±0.5 SiO2yH2O (where M = Na+ ion, n = valency, and y = 0-6), is obtained by crystallization of the synthetic mixture for 15 min. at 20-175≦̸C 50 wt.% of the particles have a diameter less than 4.0 microns. (1) contains Na2O and SiO2, and (2) contains Al2O3 and SiO2.

    PROCESS FOR PRODUCING ALUMINUM SILICATES
    7.
    发明专利
    PROCESS FOR PRODUCING ALUMINUM SILICATES 未知

    公开(公告)号：CA1076096A

    公开(公告)日：1980-04-22

    申请号：CA249275

    申请日：1976-03-31

    Applicant: DEGUSSA ,  HENKEL KGAA

    Inventor： ROEBKE WOLFGANG ,  KNEITEL DIETER ,  PARR ERFRIED

    IPC: C01B39/14 ,  C01B39/02 ,  C01B39/22 ,  C01B39/24 ,  C02F1/42 ,  C11D3/08 ,  C11D3/12 ,  B01J29/28

    Abstract: The present invention provides in a process for producing zeolitic molecular sieve powders by hydro-thermal crystallization of an aqueous aluminate-silicate mixture, separation of the crystallization product from the mother liquor and drying of the product, the improvement in which the aqueous medium containing the crystallization product is adjusted to a pH value between 8.5 and 11 prior to said drying. The present invention also provides a zeolitic molecular sieve powder having an average particle diameter of less than 10 .mu.m and in proportions of less than 1% by weight of particles having sizes of more than 45 .mu.m. Such zeolitic powders are particularly useful as ion exchangers, e.g. in the softening of water and as substitutes for phosphates in detergents and rinsing agents.

    9.
    发明专利
    未知

    公开(公告)号：DK147195B

    公开(公告)日：1984-05-14

    申请号：DK374473

    申请日：1973-07-05

    Applicant: DEGUSSA

    Inventor： ROEBKE WOLFGANG ,  MEYER-SIMON EUGEN ,  KNEITEL DIETER ,  PARR ERFRIED

    IPC: B01J2/14 ,  B01J2/28 ,  B01J20/18 ,  C01B39/00 ,  C01B39/02

    Abstract: Shaped bodies of a molecular sieve zeolite having an improved mechanical hardness greater than 5 kp are produced by spraying an unstable silicic acid sol as the binder on to a zone of the rotating plate of a granulating device and concurrently applying the pulverized zeolite particles to another zone of the rotating plate, while avoiding the formation of a plastic mass, and the thus produced shaped bodies are dried and activated according to the disclosed process. The unstable silicic acid sol has a silicic acid content greater than 10 percent by weight and a BET surface greater than 150 m2/g.

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