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    • 4. 发明授权
    • Rapid solid-state synthesis of refractory materials
    • 快速固态合成耐火材料
    • US5110768A
    • 1992-05-05
    • US647380
    • 1991-01-28
    • Richard B. KanerPhilippe R. BonneauEdward G. GillanJohn B. WileyRobert F. Jarvis, Jr.Rande Treece
    • Richard B. KanerPhilippe R. BonneauEdward G. GillanJohn B. WileyRobert F. Jarvis, Jr.Rande Treece
    • C01B21/06C01B21/068C01B21/076C01B25/08C01B31/30C01B31/34C01B31/36C01B33/06
    • B82Y30/00C01B21/06C01B21/068C01B21/0763C01B25/08C01B31/30C01B31/34C01B31/36C01B33/06C01B21/0615C01B21/0635C01P2002/77C01P2004/64C01P2006/80
    • A process for producing a refractory material having the form TB.sub.o, e.g. zirconium nitride (ZrN), includes a first step of mixing a first salt having the form TX.sub.n, e.g. zirconium tetrachloride (ZrCl.sub.4) and a second salt having the form A.sub.m B, e.g. lithium nitride (Li.sub.3 N) in a ratio of n/m in a container. The process also includes a second step of igniting the mixture of the first and second salts, e.g. ZrCl.sub.4 and Li.sub.3 N, whereby the refractory material, e.g. ZrN, is produced along with byproducts having forms nAX and (n/m-o)B, e.g. 4LiCl and (1/6)N.sub.2, respectively. The process further includes a third step of separating the refractory material from the byproducts by solvent extraction. The stoichiometric ratio of the second salt to the first salt is n/m, e.g. 4/3. T is selected from the group consisting of transition metals, e.g. zirconium, and tetrelides, i.e. carbon, silicon, germanium, tin and lead. X is selected from the halide group consisting of fluorine, chlorine, bromine and iodine. A is selected from the group consisting of alkali metals, i.e. lithium, sodium, potassium, rubidium and cesium, and alkaline earth metals, i.e. beryllium, magnesium, calcium, strontium and barium. B is a base selected from the group consisting of pnictides, i.e. nitrogen, hosphorus, arsenic, antimony and bismuth, and tetrelides, i.e. carbon, silicon, germanium, tin and lead, m and n are integers and o is a fraction, e.g. 3/3=1.
    • 制备具有TBo形式的耐火材料的方法,例如 氮化锆(ZrN),包括混合具有形式TXn的第一盐的第一步骤,例如, 四氯化锆(ZrCl 4)和具有AmB形式的第二盐,例如 氮化锂(Li 3 N)在容器中的比率为n / m。 该方法还包括点燃第一和第二盐的混合物的第二步骤,例如, ZrCl 4和Li 3 N,由此使耐火材料例如。 ZrN与具有形式nAX和(n / m-o)B的副产物一起产生,例如。 4LiCl和(1/6)N2。 该方法还包括通过溶剂萃取将耐火材料与副产物分离的第三步骤。 第二盐与第一盐的化学计量比为n / m,例如 4/3。 T选自过渡金属,例如 锆和四氢呋喃,即碳,硅,锗,锡和铅。 X选自氟,氯,溴和碘组成的卤化物基团。 A选自碱金属,即锂,钠,钾,铷和铯以及碱土金属,即铍,镁,钙,锶和钡。 B是选自pnictides(即氮,霍氏,砷,锑和铋)和tetrel(即碳,硅,锗,锡和铅)的基团,m和n是整数,o是一个馏分, 3/3 = 1。