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    Non-destructive process for the elimination of silicon from alumina based materials
    3.
    发明申请
    Non-destructive process for the elimination of silicon from alumina based materials 有权
    从氧化铝基材料中消除硅的非破坏性工艺

    公开(公告)号：US20120040822A1

    公开(公告)日：2012-02-16

    申请号：US13140310

    申请日：2009-12-09

    申请人： Patricia Pérez Romo ,  José Marie Maurice Julien Fripiat ,  Luis Miguel Rodríguez Otal ,  Pedro Martín Vega Merino ,  María de Lourdes Alejandra Guzmán Castillo ,  Candido Aguilar Barrera ,  Héctor Armendáriz Herrera ,  Francisco Javier Hernández Beltrán

    发明人： Patricia Pérez Romo ,  José Marie Maurice Julien Fripiat ,  Luis Miguel Rodríguez Otal ,  Pedro Martín Vega Merino ,  María de Lourdes Alejandra Guzmán Castillo ,  Candido Aguilar Barrera ,  Héctor Armendáriz Herrera ,  Francisco Javier Hernández Beltrán

    IPC分类号： B01J38/52 ,  B01J38/48

    CPC分类号： B01J38/52 ,  B01J21/20 ,  B01J23/883 ,  B01J23/90 ,  B01J23/94 ,  B01J37/20 ,  C01F7/46 ,  C01P2002/86 ,  C10G45/00 ,  C10G45/04 ,  C10G45/32 ,  C10G2300/70 ,  C10G2300/703 ,  C10G2300/708 ,  Y02P20/584

    摘要： The present invention refers to a method for eliminating silicon or silicon compounds that are contained in alumina based materials without destroying such alumina based materials allowing for their reutilization, its main application is being the regeneration of alumina based catalyst contaminated with silicon, which are used in hydro-treating processes in the oil industry for sulfur elimination and silicon removal from process streams. It is important to note that the procedures and/or conventional methods known so far for the elimination and removal of silicon contained in alumina based materials, use inorganic acids or their mixture in a digestion process which modifies the properties of alumina and of any other element contained in the material, thus destroying the alumina and disabling their reutilization. The non-destructive method of the present invention is characterized by the fact that an extraction agent depolymerize the silicon compounds deposited in alumina based materials, with no modification of the properties of the alumina based material and with no substantial modification of other materials o or on the metal content present in the alumina based material. The extraction agent used is an alcohol, preferably a polyol and more preferably glycerol, which is available needless of high grade of purity for its use. The silicon contained in alumina based materials, in which the non-destructive method of the present invention is used, is preferably found in inorganic structures such as oxide or silanol: Si—(OX)4(X═Al, H, Si) and/or as organosilanes structures: (OX)3—Si—CH3 and/or (CH3)2—Si—(OX)2(X═H, Si), both are depolymerized when this removal method is used.

    摘要翻译： 本发明涉及一种消除氧化铝基材料中含有的硅或硅化合物的方法，而不会破坏这种使其再利用的氧化铝基材料，其主要应用是用硅污染的氧化铝基催化剂的再生， 石油工业中的加氢处理工艺用于从工艺流中除硫和除硅。 重要的是注意到迄今为止已知的用于消除和除去氧化铝基材料中所含的硅的方法和/或常规方法，在消化过程中使用无机酸或其混合物，其改变氧化铝和任何其它元素的性质 从而破坏氧化铝并使其再利用失效。 本发明的非破坏性方法的特征在于，提取剂使沉积在氧化铝基材料中的硅化合物解聚，而不改变氧化铝基材料的性质，并且不对其他材料进行实质性改性 存在于氧化铝基材料中的金属含量。 使用的提取剂是醇，优选多元醇，更优选甘油，其使用时不需要高等级的纯度。 优选使用其中使用本发明的非破坏性方法的氧化铝基材料中含有的硅，例如氧化物或硅烷醇的无机结构：Si-（OX）4（X = Al，H，Si）和 /或作为有机硅烷结构：（OX）3-Si-CH3和/或（CH3）2-Si-（OX）2（X = H，Si），当使用该去除方法时，都被解聚。