Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins
    21.
    发明授权
    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins 有权
    含有菱沸石的分子筛的合成及其在含氧化合物转化为烯烃的用途

    公开(公告)号:US08399578B2

    公开(公告)日:2013-03-19

    申请号:US13589289

    申请日:2012-08-20

    摘要: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90+% CHA framework-type character, a reaction mixture is prepared comprising sources of water, silicon, aluminum, and phosphorus, as well as an organic template. In one aspect, the reaction mixture is heated at more than 10° C./hour to a crystallization temperature and is retained at the crystallization temperature or within the crystallization temperature range for a crystallization time from 16 hours to 350 hours to produce the silicoaluminophosphate molecular sieve. In another aspect, the reaction mixture is heated at less than 10° C./hour to a crystallization temperature from about 150° C. to about 225° C. and is then retained there for less than 10 hours to produce the silicoaluminophosphate molecular sieve. The molecular sieve can then be recovered from the reaction mixture and, preferably, used in a hydrocarbon conversion process, such as oxygenates to olefins.

    摘要翻译: 在合成具有90 + CHA框架型特征的硅铝磷酸盐分子筛的方法中,制备包含水,硅,铝和磷源以及有机模板的反应混合物。 在一个方面,将反应混合物在大于10℃/小时加热至结晶温度,并保持在结晶温度或结晶温度范围内,结晶时间为16小时至350小时,以产生硅铝磷酸盐分子 筛。 在另一方面,将反应混合物在小于10℃/小时加热至约150℃至约225℃的结晶温度,然后将其保留在少于10小时以产生硅铝磷酸盐分子筛 。 然后可以从反应混合物中回收分子筛,并且优选用于烃转化方法,例如含氧化合物至烯烃。

    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins
    22.
    发明授权
    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins 有权
    含有菱沸石的分子筛的合成及其在含氧化合物转化为烯烃的用途

    公开(公告)号:US07754187B2

    公开(公告)日:2010-07-13

    申请号:US11820908

    申请日:2007-06-21

    IPC分类号: C01B37/02 C01B39/04

    摘要: A method is disclosed of synthesizing a crystalline material comprising a CHA framework type molecular sieve and having a composition involving the molar relationship: (n)X2O3:YO2, wherein X is a trivalent element; Y is a tetravalent element; and n is from 0 to less than 0.01. The method comprises preparing a reaction mixture capable of forming said material, said mixture comprising a source of water, a source of an oxide of a tetravalent element Y and optionally a source of an oxide of a trivalent element X, wherein the reaction mixture is substantially free of fluoride ions added as HF; maintaining the reaction mixture under conditions sufficient to form crystals of the crystalline material; and than recovering the crystalline material. The reaction mixture comprises either a specific directing agent for directing the formation of a CHA framework type molecular sieve and/or a H2O:YO2 molar ratio of greater than 20. In one embodiment, the resultant crystalline material is free of stacking faults and/or any intergrown phase with an AEI framework type molecular sieve.

    摘要翻译: 公开了一种合成包含CHA骨架型分子筛并具有摩尔关系的组成的结晶材料的方法:(n)X 2 O 3:YO 2,其中X是三价元素; Y是四价元素; 并且n为0至小于0.01。 该方法包括制备能够形成所述材料的反应混合物,所述混合物包含水源,四价元素Y的氧化物源和任选的三价元素X的氧化物源,其中反应混合物基本上 不含氟离子作为HF添加; 在足以形成结晶材料晶体的条件下保持反应混合物; 而不是回收结晶材料。 反应混合物包括用于引导形成CHA骨架型分子筛和/或H 2 O:YO 2摩尔比大于20的特定导向剂。在一个实施方案中,所得结晶材料不含堆垛层错和/或 任何与AEI框架型分子筛的共生相。

    Synthesis of crystalline silicoaluminophosphates and use in olefin production
    26.
    发明授权
    Synthesis of crystalline silicoaluminophosphates and use in olefin production 有权
    用于烯烃生产的结晶硅铝磷酸盐的合成

    公开(公告)号:US06403855B1

    公开(公告)日:2002-06-11

    申请号:US09519975

    申请日:2000-03-07

    IPC分类号: C07C120

    摘要: This invention is directed to a method of making a crystalline silicoaluminophosphate molecular sieve. The method includes adding to a vessel a mixture comprising a silicon containing composition, an aluminum containing composition, a phosphorus containing composition, and a template, and continuously stirring the mixture while applying heat at a temperature and duration effective to form a crystalline silicoaluminophosphate molecular sieve, wherein stirring is applied for 20-95% of the duration that heat is applied. The result is a substantial increase in crystalline molecular sieve product.

    摘要翻译: 本发明涉及制备结晶硅铝磷酸盐分子筛的方法。 该方法包括向容器中加入包含含硅组合物,含铝组合物,含磷组合物和模板的混合物,并在有效形成结晶硅铝磷酸盐分子筛的温度和持续时间下持续搅拌混合物 ,其中施加搅拌以施加热量的持续时间的20-95%。 结果是结晶分子筛产物的显着增加。

    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins
    28.
    发明授权
    Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins 有权
    含有菱沸石的分子筛的合成及其在含氧化合物转化为烯烃的用途

    公开(公告)号:US08313727B2

    公开(公告)日:2012-11-20

    申请号:US12477700

    申请日:2009-06-03

    IPC分类号: C01B37/08

    摘要: In a method of synthesizing a mostly CHA-type silicoaluminophosphate sieve, a reaction mixture comprises sources of water, silicon, aluminum, phosphorus, and a template. In one aspect, the inorganic phosphorus and silicon sources are first combined to form a primary mixture that is aged. Then, the aluminum source is added, followed optionally by any organic phosphorus source, and then the template, to form the synthesis mixture. After heating at

    摘要翻译: 在合成大多数CHA型硅铝磷酸盐筛的方法中,反应混合物包含水,硅,铝,磷和模板的来源。 一方面,首先将无机磷和硅源组合以形成老化的初级混合物。 然后,加入铝源,随后任选地由任何有机磷源,然后模板,形成合成混合物。 在<10℃/ hr下加热以诱导结晶,在该方面,结晶筛的平均晶体尺寸&lt; l1E;1.5μm和/或以≥10.0wt%的收率回收。 另一方面,当合成混合物Si / Al 2比<0.33时,引发结晶。 有利地,如此结晶的筛网具有≧0.5的模板效率和/或以≥10.0wt%的收率回收。 来自两个方面的分子筛可用于烃(含氧化合物 - 烯烃)转化过程。