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Method for producing fine powder of pure alumina or alumina-magnesia spinel with uniform pore structure
Method for producing fine powder of pure alumina or alumina-magnesia spinel with uniform pore structure
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机译:具有均匀孔结构的纯氧化铝或氧化铝镁尖晶石细粉的生产方法
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摘要
This invention relates to the production of the group of a nonstoichiometric spinel which bases on alumina or alumina-based material. In this method starting material is ammonium alum or compsn. containing ammonium alum for the bulk density of dehydrated salts to be less than 0.2 kg/m3, (2) maintaining the dehydrated at 750 - 850C, and (3) calcinating the dehydrated to have homogeneous pore structure.
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机译:本发明涉及基于氧化铝或氧化铝基材料的非化学计量尖晶石的生产。在这种方法中,起始原料是铵明矾或复合铵。为了使脱水盐的堆积密度小于0.2kg / m 3,添加(2)明矾;(2)将脱水物保持在750-850℃;以及(3)将脱水物煅烧以具有均匀的孔结构。
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