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    • 3. 发明授权
    • Method for forming a non-hygroscopic zinc-phosphate compound and a
zinc-phosphate glass
    • 用于形成非吸湿性磷酸锌化合物和磷酸锌玻璃的方法
    • US5482526A
    • 1996-01-09
    • US178417
    • 1994-02-17
    • Noshir B. HavewalaKevin T. MorrisRobert D. Shoup
    • Noshir B. HavewalaKevin T. MorrisRobert D. Shoup
    • C03C1/00C03C3/16C03B5/16C01B15/16C01B25/26C03C3/17
    • C03C1/00C03C3/16
    • The instant invention describes a method for preparing a stable, anhydrous non-hygroscopic zinc phosphate compound which is suitable for use as a batch material in the preparation of zinc-phosphate glasses. This method comprises three basic steps: first, forming an aqueous slurry mixture by intimately mixing a mixture containing phosphoric acid and a zinc-containing compound whereby the so-formed slurry mixture is comprised of a mixture of zinc hydrogen phosphates and exhibits a P.sub.2 O.sub.5 /ZnO weight ratio range between about 1.2 to 2.0; second, heating the so-formed slurry mixture to a temperature and for a time sufficient to achieve both a removal of a sufficient amount of water and the phase transformation of the zinc hydrogen phosphates resulting in zinc-phosphate material comprised of granular solid mixture of zinc metaphosphates and zinc pyrophosphate and third, cooling the zinc-phosphate material to room temperature.
    • 本发明描述了一种制备稳定的,无水的非吸湿性磷酸锌化合物的方法,其适用于制备磷酸锌玻璃中的批料。 该方法包括三个基本步骤:首先,通过将含有磷酸和含锌化合物的混合物充分混合形成含水浆料混合物,由此形成的浆料混合物由磷酸氢锌的混合物组成并显示出P2​​O5 / ZnO 重量比在约1.2至2.0之间; 第二,将如此形成的浆料混合物加热至足以实现足够量的水的去除和磷酸锌锌的相变的温度和时间,从而产生由粒状固体的锌混合物组成的磷酸锌材料 偏磷酸锌和焦磷酸锌,第三,将磷酸锌材料冷却至室温。