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发明公开
CN104163746A 纳米金属复合氧化物钨酸铋的应用及其制备方法 有权

纳米金属复合氧化物钨酸铋的应用及其制备方法
摘要：
本发明涉及纳米金属复合氧化物钨酸铋的应用及其制备方法。所涉及的应用为纳米金属复合氧化物钨酸铋作为固体双基推进剂或固体改性双基推进剂的燃烧催化剂的应用。所涉及的制备方法是pH为11～12的硝酸铋与钨酸钠的混合溶液在160～180℃下水热反应制备出纳米金属复合氧化物钨酸铋。该纳米金属复合氧化物钨酸铋是一类绿色的新型燃烧催化剂，能够实现固体推进剂的快速稳态燃烧，显著降低压力指数，形成特殊的高压“平台燃烧”。本发明合成方法简单，易于工业化生产，产品粒径分布均匀。
摘要（英）：

The invention relates to an application of nano metal composite oxide bismuth tungstate as a solid double-base propellant or a combustion catalyst for solid modified double-base propellant, and also provides a preparation method of the nano metal composite oxide bismuth tungstate. The nano metal composite oxide bismuth tungstate is prepared by making bismuth nitrate and sodium tungstate carry out hydrothermal reactions in a solution with a pH value of 11 to 12 at a temperature of 160 to 180 DEG C. The nano metal composite oxide bismuth tungstate is an environment-friendly novel burning catalyst, can realize the rapid and stable burning of a solid propellant, prominently reduces the pressure index, and forms special high-pressure plateau combustion. The synthesis method is simple, and can be easily applied to industrial production. The product particle size distribution is uniform.

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