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    • 15. 发明申请
    • DETONATION NANODIAMOND MATERIAL PURIFICATION METHOD AND PRODUCT THEREOF
    • 爆炸性纳米材料纯化方法及其制品
    • WO2013135305A1
    • 2013-09-19
    • PCT/EP2012/054676
    • 2012-03-16
    • CARBODEON LTD OYDOLMATOV, ValeryMYLLYMÄKI, Vesa
    • DOLMATOV, ValeryMYLLYMÄKI, Vesa
    • C01B31/06
    • C01B32/28C01P2006/80
    • The invention pertains to mild, acid- and alkali-free purification method of detonation nanodiamond material from water-insoluble metal-containing impurities and to the product thereof. The products thus obtained comprise nanodiamond and diamond-containing detonation blend. The method of the invention is implemented by an impact treatment of the detonation nanodiamond material with aqueous or water organic solutions of chelating agents in concentrations 0.5-20 wt.% at elevated temperature, wherein the weight-percent ratio of the detonation nanodiamond material to an undiluted chelating agent is substantially 1 to 0.2. Impact treatment of the detonation nanodiamond material in chelating agent solution may comprise boiling, ultrasonication, cavitational disintegration, and harsh treatment in sealed chamber at temperatures of up to about 300°C and high pressure. The method provides at least 5-fold reduction of metal-containing impurities in the resulting product, where-in the content of such elements as chromium and iron is reduced to negligible amounts.
    • 本发明涉及从含水不溶性金属的杂质及其产物引发的纳米金刚石材料的轻度,无酸和无碱的净化方法。 由此获得的产品包含纳米金刚石和含金刚石的爆轰共混物。 本发明的方法通过使用浓度为0.5-20重量%的螯合剂的水性或水性有机溶液在升高的温度下对爆轰纳米金刚石材料进行冲击处理来实现,其中爆炸纳米金刚石材料的重量百分比与 未稀释的螯合剂基本上为1〜0.2。 爆炸纳米金刚石材料在螯合剂溶液中的冲击处理可能包括在高达约300℃和高压的温度下在密封室中的沸腾,超声波,空穴分解和苛刻处理。 该方法在所得产物中提供至少5倍的含金属杂质的还原,其中诸如铬和铁的元素的含量降低到可忽略的量。