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bindande med fosfat av reaktiva spineller innehaollande mgo bindningsaktivator och anvaendbara saosom eldfasta materialier.
bindande med fosfat av reaktiva spineller innehaollande mgo bindningsaktivator och anvaendbara saosom eldfasta materialier.
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机译:含镁结合活化剂的反应性尖晶石的磷酸盐结合和有用的如耐火材料。
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摘要
A composition useful particularly as a mortar, coating, castable or ramming mix is disclosed comprising: (1) 5 to 85 percent by weight of at least one reactive magnesium aluminium oxide spinel derived by coprecipitating water soluble magnesium salt(s) and aluminium salt(s) in a proportion to provide from about 0.5 to about 1 magnesium atom per aluminum atom, heating the coprecipitate to between about 700 DEG to about 1650 DEG C to convert it to its oxide form (MgAl2O4) which contains from about 1 to about 25 percent by weight segregated MgO phase intimately dispersed therein; (2) 0 to 80 percent by weight of a substantially non-reactive filler material; (3) 1 to 20 percent by weight of an inorganic phosphate material capable of forming (PO3)-_n moieties on heating at above about 200 DEG C; (4) 4 to 30 percent by weight water; and (5) 0 to 5 percent by weight handling agents.
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机译:公开了一种特别用作砂浆,涂料,可浇铸或捣打混合物的组合物,该组合物包含:(1)5至85%重量的至少一种反应性镁铝尖晶石,它们是通过将水溶性镁盐和铝盐共沉淀而得到的( s)以每铝原子提供约0.5至约1个镁原子的比例,将共沉淀物加热至约700至约1650℃,以将其转化成其氧化物形式(MgAl 2 O 4),其包含约1至约25重量百分比的偏析的MgO相紧密分散在其中; (2)0-80重量%的基本上非反应性的填充材料; (3)在20℃以上加热时能形成(PO3)-n部分的无机磷酸盐材料,重量为1-20%。 (4)4至30重量百分比的水; (5)0至5%重量的装卸剂。
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