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    • 4. 发明申请
    • OPEN-CELL METAL FOAMS AND PROCESS FOR THEIR PREPARATION
    • OPEN-CELL METAL FOAMS AND PROCESS FOR THE PRACARATION
    • WO2017037482A2
    • 2017-03-09
    • PCT/HU2016/000056
    • 2016-09-01
    • MOL HUNGARIAN OIL AND GAS PUBLIC LIMITED COMPANY (55%)BAY ZOLTÁN NONPROFIT LTD (45%)
    • KAPTAY, GyörgySZABÓ, DávidSZABÓ, JózsefPETRÓ, József CsabaISAÁK, György
    • C22C1/08B01J19/2485B01J23/24B01J23/32B01J23/38B01J23/50B01J23/70B01J23/72B01J23/755B01J35/0026B01J35/04B01J35/1009B01J35/1014B01J35/1019B01J35/1023B01J35/1076B01J37/0018B01J37/04B01J37/082B01J2219/2432B01J2219/2434B22F3/1125B22F2003/1131B22F2999/00C04B38/0625B22F3/1146B22F2201/20B22F2201/01
    • The subject of the invention is preparation of self-supporting, self-cleaning open-cell metal foams containing one or more transition metals of the following transition metals: Ag, Au, Co, Ni, Cr, Cu, Fe, Ir, Mn, Mo, Nb, Os, Pd, Pt, Re, Rh, Ru, Ta, Tc, W, one or more non- metals of the following non-metals: Ge, Sb, Si and/or their alloys, where in the first step, in a prescribed amount of one of the components A or B, or in the mixture of the two components A and B required to prepare a commercially available polyurethane foam (where A means a polyol and B means a diisocyanate or its derivative) the particles of the target material(s) are dissolved in elemental form or in the form of their alloy and/or oxide (oxide mixture), and in this way a polyurethane foam is prepared. The resulting composite polyurethane foam which contains the active material in dispersed, colloidal structure is subjected to heat treatment in vacuum, if desired in the presence of elemental carbon. By this metallurgical method, following decomposition of the organic components, a novel, earlier not-known open-cell transition metal or non-metal sintered solid foam is obtained. As a result of this method, from 20 transition metals (Ag, Au, Co, Ni, Cr, Cu, Fe, Ir, Mn, Mo, Nb, Os, Pd, Pt, Re, Rh, Ru, Ta, Tc, W) and 3 non-metals (Ge, Sb, Si) open-cell metal foams of one or more components (alloys) are prepared, which, owing to their high specific surface area and their rnechanical characteristics are suitable for application as catalysts or catalyst supports in hydrogenation or oxidation processes.
    • 本发明的主题是制备包含以下过渡金属的一种或多种过渡金属的自支撑自清洁开孔金属泡沫:Ag,Au,Co,Ni,Cr,Cu,Fe,Ir,Mn, Mo,Nb,Os,Pd,Pt,Re,Rh,Ru,Ta,Tc,W,以下非金属的一种或多种非金属:Ge,Sb,Si和/或其合金,其中在第一 步骤,在规定量的组分A或B之一中,或在制备市售聚氨酯泡沫(其中A表示多元醇,B表示二异氰酸酯或其衍生物)所需的两种组分A和B的混合物中, 目标材料的颗粒以元素形式或以其合金和/或氧化物(氧化物混合物)的形式溶解,并且以这种方式制备聚氨酯泡沫。 如果需要,在元素碳的存在下,将所得到的包含分散的胶体结构的活性物质的复合聚氨酯泡沫体在真空中进行热处理。 通过这种冶金方法,随着有机组分的分解,获得了一种新颖的较早期未知的开孔过渡金属或非金属烧结固体泡沫体。 作为这种方法的结果,从20个过渡金属(Ag,Au,Co,Ni,Cr,Cu,Fe,Ir,Mn,Mo,Nb,Os,Pd,Pt,Re,Rh,Ru,Ta, W)和3种非金属(Ge,Sb,Si)一种或多种组分(合金)的开孔金属泡沫,由于其高比表面积和其机械特性适合用作催化剂或 催化剂载体在氢化或氧化过程中。