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    • 4. 发明申请
    • METHOD FOR THE DIRECT SYNTHESIS OF IRON-CONTAINING AEI-ZEOLITE CATALYST
    • 直接合成含铁AEI-沸石催化剂的方法
    • WO2017134006A1
    • 2017-08-10
    • PCT/EP2017/051912
    • 2017-01-30
    • HALDOR TOPSØE A/S
    • MARTÍN GARCÍA, NuriaMOLINER MARÍN, ManuelCORMA CANÓS, AvelinoTHØGERSEN, Joakim ReimerVENNESTRØM, Peter Nicolai Ravnborg
    • C01B39/02B01J29/76C01B39/06C01B39/48
    • C01B39/026B01D53/9418B01D2251/2062B01D2255/2027B01D2255/20738B01D2255/50B01J29/76B01J29/7615B01J29/763B01J37/0246B01J2229/183B01J2229/186C01B39/065C01B39/48
    • A method for the direct synthesis of a crystalline material with the AEI zeolithic structure containing iron-species and being essentially free of alkali ions, comprising the following steps: (i) preparation of a mixture containing water, a high-silica zeolite as a main source of silica and alumina, an alkyl-substituted cyclic ammonium cation as organic structure directing agent (OSDA), a source of iron, and a source of an alkali metal ion [Alk], to obtain a final synthesis mixture having the following molar composition: SiO 2 : a AI 2 O 3 : b Fe : c OSDA : d Alk : e H 2 O wherein a is in the range from 0.001 to 0.2; wherein b is in the range from 0.001 to 0.2; wherein c is in the range from 0.01 to 2; wherein d is in the range from 0.001 to 2; wherein e is in the range from 1 to 200; (ii) crystallization of the mixture achieved in (i); (iii) recovery of the crystalline material achieved in (ii); (iv) calcination of the crystalline material from step (iii); and (v) removal of the alkali metal cation, present in the calcined crystalline material after step (iv) to obtain a final molar composition: SiO 2 : o AI 2 O 3 : p Fe : q Alk wherein o is in the range from 0.001 to 0.2, p is in the range from 0.001 to 0.2 and q is below 0.02.
    • 一种直接合成具有含铁物质且基本不含碱金属离子的AEI沸石结构的晶体材料的方法,其包括以下步骤:(i)制备含有水, 作为二氧化硅和氧化铝的主要来源的高硅沸石,作为有机结构导向剂(OSDA)的烷基取代的环状铵阳离子,铁的来源和碱金属离子的来源[Alk],以获得 具有以下摩尔组成的最终合成混合物:SiO 2:Al 2 O 3:b Fe:c OSDA:d Alk:e H 其中α在0.001至0.2的范围内; 其中b在0.001至0.2的范围内; 其中c在0.01至2的范围内; 其中d在0.001至2的范围内; 其中e在1至200的范围内; (ii)(i)中实现的混合物的结晶; (iii)回收(ii)中获得的晶体材料; (iv)煅烧来自步骤(iii)的晶体材料; 和(v)在步骤(iv)之后除去存在于煅烧结晶物质中的碱金属阳离子以获得最终摩尔组成:SiO 2:Al 2 O 3 3:p Fe:q Alk其中o O在0.001至0.2的范围内,p在0.001至0.2的范围内, i> q 低于0.02。
    • 5. 发明申请
    • PROCESS FOR PREPARING IRON(III)-EXCHANGED ZEOLITE COMPOSITION
    • 制备铁(III) - 沸石分子筛组合物的方法
    • WO2017109705A1
    • 2017-06-29
    • PCT/IB2016/057837
    • 2016-12-20
    • BASF CORPORATION
    • FU, QiSLAWSKI, BarbaraPFAB, Peter
    • C01B39/02B01J29/72B01D53/94B01D46/00
    • B01D53/9418B01D2255/20738B01D2255/50B01J29/72C01B39/026
    • The present disclosure relates to processes for formation of a molecular sieve, particularly a metal- promoted molecular sieve, and more particularly an Iron(III) exchanged zeolite. Preferably, the zeolite is of the chabazite form or similar structure. The processes can include combining a zeolite with Iron(III) cations in an aqueous medium. The process can be carried out at a pH of less than about 7, and a buffering material can be used with the aqueous medium. The processes beneficially result in Iron exchange that can approach 100% along with removal of cations (such as sodium, NH4, and H) from the zeolite. An Iron(III)-exchanged zeolite prepared according to the disclosed processes can include about 2,000 ppm or less of cation and about 1% by weight or greater of Iron(III). The disclosure also provides catalysts (e.g., SCR catalysts) and exhaust treatment systems including the Iron(III)-exchanged zeolite.
    • 本发明涉及用于形成分子筛,特别是金属促进的分子筛,更具体地说是铁(III)交换的沸石的方法。 优选沸石是菱沸石形式或类似结构。 该方法可以包括将沸石与铁(III)阳离子在水性介质中结合。 该方法可以在小于约7的pH下进行,缓冲材料可以与含水介质一起使用。 这些过程有利地导致铁交换,随着从沸石中去除阳离子(例如钠,NH 4和H),其接近100%。 根据所公开的方法制备的铁(III)交换沸石可包含约2,000ppm或更少的阳离子和约1重量%或更多的铁(III)。 本公开还提供了包括铁(III)交换沸石的催化剂(例如SCR催化剂)和排气处理系统。