• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Es wird ein ultrastabiler Zeolith des Typs Y mit einer Zellkonstanten von 24,20 bis 24,60 Å und einem Al2O3-Gehalt von 4,1 bis 19,4 hergestellt, indem man aktivierten Zeolithen Y bei Temperaturen von 150°C bis 450°C mit SiCl4 behandelt und gegebenenfalls anschließend tempert.
    公开号:SU1313340A3
    申请号:SU823460490
    申请日:1982-07-06
    公开日:1987-05-23
    发明作者:Штрак Ханс；Кляйншмит Петер
    申请人:Дегусса Аг (Фирма)；
    IPC主号:
    专利说明:

    113
    This invention relates to methods for the preparation of ultrastable zeolites by dealuminating fujazite.
    The aim of the invention is to simplify the process and ensure the production of a zeolite with a content of 18.0 wt.%, With a SiOji / AljO3 molar ratio of 7.0-39.0 and cell constants of 24.22-24.42 A.
    Example I. NaY-zeolite with a ratio of 5.0, A1, O is 22.0% by weight and cell constants is 24.64 A. The substance is activated in a glass tube at 380 ° C.
    After activating and establishing the required reaction temperature, a dry stream of nitrogen, saturated with SiCl, at a rate of 15 l / h is passed through a zeolite.
    Upon completion of the reaction, the product is calcined at, cooled to room temperature, washed with distilled water until the chloride is removed, dried at PO C and fed to an X-ray diffraction analysis.
    In tab. 1 shows the dependence of the degree of secondary alteration on the reaction temperature. The content is determined chemically by a wet method.
    Table 1
    The duration of the reaction is 3 h. Figure 2 shows the data on the effect of increasing the duration of the polymer at a constant temperature on the aluminum content in the zeolite lattice.
    3340
    Table 2
    Example 2 A NaY-zeolite with a ratio of 3.0 and 28.7 wt.% (Determined by wet-chemical analysis) is used as the starting compound. The substance is activated in a glass tube at 380 ° C.
    After establishing the required reaction temperature, a dry stream of nitrogen, saturated with SiCl4, is passed through a zeolite at a rate of 16 l / h.
    After completion of the reaction, the product is calcined at 560 ° C, cooled to room temperature, washed with distilled water until free from chloride, dried at 110 ° C, and then fed to an X-ray structural analysis.
    In tab. 3 shows the dependences of the degree of secondary aluminum on the reaction temperature. The content is determined chemically by a wet method.
    Table 3
    five
    0
    200 300 400 450
    24.41 24.33 24.25 24.22
    18.1
    13.7
    6.5
    4.2
    7
    10 23 39
    The reaction time is 3 hours. Example 3. The starting compound is NaY-zeolite with a SiO / AljOj ratio of 6.4 and a ratio of A1.0 to 18.5 wt%. Substance
    activated in a glass tube at 400 ° C.
    After activating and establishing the required reaction temperature, a dry stream of nitrogen saturated with SiCl4 at a rate of 15 l / h is passed through the zeolite.
    Upon completion of the reaction, the product is calcined at 580 ° C, cooled to room temperature, washed with distilled water until free from chloride, dried at 110 ° C and then fed to an x-ray analysis.
    In tab. 4 shows the dependences of the degree of decomposition on the reaction temperature. The content is determined chemically by a wet method.
    Table
    250 300
    24.36 16.3 8 24.33 13.8 10
    Editor O. Yurkovetska
    Compiled by T. Chilikina
    Tehred I.Popovich Proofreader A. Tsko
    Order 1983/58 Circulation 456 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Continuation of table 4
    The reaction time is 3 hours. The invention allows to obtain a zeolite with precisely defined cell constants and a strictly defined composition, as well as to simplify the production process by eliminating the ion exchange stage for its conversion into the n-form.
    权利要求:
    Claims (1)
    [1]
    Formula of the invention. A method for producing an ultrastable Y-type zeolite, including thermal dealumination of an activated zeolite with gaseous halogenosilane in the absence of moisture in the medium, calcining, washing and drying the product, characterized in that
    AljO, 4.1-18.0 wt.% At a molar ratio of 7.0-39.0 and cell constants of 24.22-24.42 A, subjected to dealumination, activated NaY zeolite containing
     18.5-28.7 wt.% At a ratio of SiCi / Al Gj of 3.0-6.4, silane chloride in nitrogen is used as the halo-silane, and dealumination is carried out at 200-450 C.
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    同族专利:
    公开号 | 公开日
    EP0072397A3|1983-07-27|
    EP0072397B1|1985-07-10|
    DE3132380C1|1983-02-24|
    JPH0220562B2|1990-05-09|
    EP0072397A2|1983-02-23|
    DE3264657D1|1985-08-14|
    AT14201T|1985-07-15|
    JPS5836917A|1983-03-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1667544B2|1967-05-20|1972-03-16|Gebr Herrmann, 5000 Köln Ehrenfeld|PROCESS FOR THE PRODUCTION OF SYNTHETIC FAUJASITE WITH EXTREMELY HIGH CONTENT OF SYLICIUM OXYDE|
    US3644220A|1969-11-13|1972-02-22|Exxon Research Engineering Co|Metal halide containing zeolites and method for their preparation|
    DE2510740C2|1975-03-12|1984-12-06|Basf Ag, 6700 Ludwigshafen|Method of increasing the Si0 2 / AL 2 O 3 molar ratio in the crystal framework of zeolites|
    DE2510700C2|1975-03-12|1983-01-27|Basf Ag, 6700 Ludwigshafen|Process for the production of zeolites with improved resistance to high temperatures and acids|
    US4273753A|1979-09-10|1981-06-16|Mobil Oil Corporation|De-aluminization of aluminosilicates|
    EP0062123B1|1981-04-08|1986-07-02|Mobil Oil Corporation|De-aluminization of aluminosilicates|SE451544B|1986-11-14|1987-10-19|Zeol Ab|PROCEDURE FOR PREPARING DEALUMINIZED ZEOLITE Y WITH HIGH HYDROPHOBICITY|
    DE3719049A1|1987-06-06|1988-12-15|Akzo Gmbh|METHOD FOR INSTALLING SILICON ATOMS RATHER THAN ALUMINUM ATOMS IN THE CRYSTAL GRID OF A ZEUITHITE OF THE FAUJASITE TYPE|
    US5389357A|1990-04-11|1995-02-14|Catalysts & Chemicals Industries Co., Ltd.|Modified crystalline aluminosilicate zeolites and process for their preparation|
    EP0600483A1|1992-12-03|1994-06-08|Tosoh Corporation|Process for removing nitrogen oxides from oxygen rich exhaust gas|
    CN1051029C|1995-01-16|2000-04-05|中国石油化工总公司石油化工科学研究院|Preparation of rare earth-containing rich silicon ultra stabilization Y-type molecular sieve|
    DE19532500A1|1995-09-02|1997-03-06|Degussa|Process for the preparation of zeolite Y|
    DE19901302A1|1999-01-15|2000-07-20|Degussa|Zeolite powder containing alkylhalosilane|
    EP1748834A1|2004-04-16|2007-02-07|HTE Aktiengesellschaft The High Throughput Experimentation Company|Process for the removal of harmful substances from exhaust gases of combustion engines and catalyst for carrying out said process|
    JP4808172B2|2006-03-30|2011-11-02|Ｊｘ日鉱日石エネルギー株式会社|Hydrocracking catalyst and fuel substrate production method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3132380A|DE3132380C1|1981-08-17|1981-08-17|Process for the production of ultra-stable zeolites|
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