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    • 9. 发明授权
    • Method for producing calcium borate
    • 硼酸钙生产方法
    • US5688481A
    • 1997-11-18
    • US544518
    • 1995-10-18
    • David M. Schubert
    • David M. Schubert
    • C01B35/12
    • C01B35/126
    • An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 85.degree.-105.degree. C. A novel crystalline product is produced having a unique crystal habit resulting in improved physical properties. Dehydration of this product produced a novel amorphous, anhydrous product having similar crystal habit and physical properties.
    • 提供了一种通过硼酸和石灰在含水浆料中反应生产结晶六硼酸钙四水合物,合成贵金属的改进方法。 反应条件包括硼酸与水的摩尔比大于0.25:1,石灰与硼酸摩尔比在0.05-0.15:1范围内,温度在85-105℃范围内。产生新的结晶产物 具有独特的晶体习性,从而改善物理性能。 该产品的脱水产生了具有类似晶体习性和物理性质的新型无定形无水产品。