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    • 2. 发明授权
    • Method of waste stabilization with dewatered chemically bonded phosphate ceramics
    • 脱水化学键合磷酸盐陶瓷废物稳定化方法
    • US07745679B2
    • 2010-06-29
    • US10547445
    • 2004-02-26
    • Arun WaghMartin D. Maloney
    • Arun WaghMartin D. Maloney
    • A62D3/00B09B1/00
    • B09B3/0041C04B28/342C04B2111/00767G21F9/16G21F9/302G21F9/304G21F9/305Y02W30/91C04B14/304C04B18/04C04B40/0028C04B40/0263C04B2103/0094C04B2103/0095C04B2103/0096
    • A method of stabilizing a waste in a chemically bonded phosphate ceramic (CBPC). The method consists of preparing a slurry including the waste, water, an oxide binder, and a phosphate binder. The slurry is then allowed to cure to a solid, hydrated CBPC matrix. Next, bound water within the solid, hydrated CBPC matrix is removed. Typically, the bound water is removed by applying heat to the cured CBPC matrix. Preferably, the quantity of heat applied to the cured CBPC matrix is sufficient to drive off water bound within the hydrated CBPC matrix, but not to volatalize other non-water components of the matrix, such as metals and radioactive components. Typically, a temperature range of between 100° C.-200° C. will be sufficient. In another embodiment of the invention wherein the waste and water have been mixed prior to the preparation of the slurry, a select amount of water may be evaporated from the waste and water mixture prior to preparation of the slurry. Another aspect of the invention is a direct anyhydrous CBPC fabrication method wherein water is removed from the slurry by heating and mixing the slurry while allowing the slurry to cure. Additional aspects of the invention are ceramic matrix waste forms prepared by the methods disclosed above.
    • 稳定化学键合磷酸盐陶瓷(CBPC)中的废物的方法。 该方法包括制备包括废物,水,氧化物粘合剂和磷酸盐粘合剂的浆料。 然后将浆液固化成固体,水合的CBPC基质。 接下来,去除固体水合CBPC基质中的结合水。 通常,通过向固化的CBPC基质施加热量来除去结合的水。 优选地,施加到固化的CBPC基质上的热量足以驱除在水合CBPC基质内结合的水,而不是挥发基质的其它非水组分,例如金属和放射性组分。 通常,在100℃-200℃之间的温度范围将是足够的。 在本发明的另一个实施方案中,其中在制备浆料之前将废物和水混合,在制备浆料之前可以从废物和水混合物中蒸发选择量的水。 本发明的另一方面是直接无水CBPC制造方法,其中通过在允许浆料固化的同时加热和混合浆料从浆料中除去水分。 本发明的另外的方面是通过上述方法制备的陶瓷基质废物形式。
    • 9. 发明申请
    • Method of waste stabilization with dewatered chemically bonded phosphate ceramics
    • 脱水化学键合磷酸盐陶瓷废物稳定化方法
    • US20060235258A1
    • 2006-10-19
    • US10547445
    • 2004-02-26
    • Arun WaghMartin Maloney
    • Arun WaghMartin Maloney
    • B09B3/00
    • B09B3/0041C04B28/342C04B2111/00767G21F9/16G21F9/302G21F9/304G21F9/305Y02W30/91C04B14/304C04B18/04C04B40/0028C04B40/0263C04B2103/0094C04B2103/0095C04B2103/0096
    • A method of stabilizing a waste in a chemically bonded phosphate ceramic (CBPC). The method consists of preparing a slurry including the waste, water, an oxide binder, and a phosphate binder. The slurry is then allowed to cure to a solid, hydrated CBPC matrix. Next, bound water within the solid, hydrated CBPC matrix is removed. Typically, the bound water is removed by applying heat to the cured CBPC matrix. Preferably, the quantity of heat applied to the cured CBPC matrix is sufficient to drive off water bound within the hydrated CBPC matrix, but not to volatalize other non-water components of the matrix, such as metals and radioactive components. Typically, a temperature range of between 100° C.-200° C. will be sufficient. In another embodiment of the invention wherein the waste and water have been mixed prior to the preparation of the slurry, a select amount of water may be evaporated from the waste and water mixture prior to preparation of the slurry. Another aspect of the invention is a direct anyhydrous CBPC fabrication method wherein water is removed from the slurry by heating and mixing the slurry while allowing the slurry to cure. Additional aspects of the invention are ceramic matrix waste forms prepared by the methods disclosed above.
    • 稳定化学键合磷酸盐陶瓷(CBPC)中的废物的方法。 该方法包括制备包括废物,水,氧化物粘合剂和磷酸盐粘合剂的浆料。 然后将浆液固化成固体,水合的CBPC基质。 接下来,去除固体水合CBPC基质中的结合水。 通常,通过向固化的CBPC基质施加热量来除去结合的水。 优选地,施加到固化的CBPC基质上的热量足以驱除在水合CBPC基质内结合的水,而不是挥发基质的其它非水组分,例如金属和放射性组分。 通常,在100℃-200℃之间的温度范围将是足够的。 在本发明的另一个实施方案中,其中在制备浆料之前将废物和水混合,在制备浆料之前可以从废物和水混合物中蒸发选择量的水。 本发明的另一方面是直接无水CBPC制造方法,其中通过在允许浆料固化的同时加热和混合浆料从浆料中除去水分。 本发明的另外的方面是通过上述方法制备的陶瓷基质废物形式。