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    • 1. 发明授权
    • Media-agitation type pulverizer
    • 介质搅拌式粉碎机
    • US09089846B2
    • 2015-07-28
    • US14122711
    • 2012-07-23
    • Tsuyoshi IshikawaShogo IwasawaTakahiro Tamura
    • Tsuyoshi IshikawaShogo IwasawaTakahiro Tamura
    • B02C17/16B02C17/18
    • B02C17/1815B02C17/16B02C17/161B02C17/168B02C17/18B02C17/184
    • A media-agitation pulverizer is capable of creating a uniformized, stable helicoidal flow in a mixture of pulverizing media and a raw material slurry, thereby performing pulverization/dispersion uniformly with satisfactory energy efficiency. The media-agitation pulverizer includes a guide ring installed to radially divide a lower region of a pulverization chamber into an inner section and an annular outer section, whereby a flow of a mixture of a raw material slurry and pulverizing media is formed as a helicoidal flow including a secondary flow flowing through a circulation flow path with respect to the guide ring; and rotational-flow suppressing device is provided within the pulverization chamber and adapted to strengthen the secondary flow of the helicoidal flow, thereby stabilizing the helicoidal flow.
    • 介质搅拌粉碎机能够在粉碎介质和原料浆料的混合物中产生均匀稳定的螺旋流,从而以令人满意的能量效率均匀地进行粉碎/分散。 介质搅拌式粉碎机包括导向环,其安装成将粉碎室的下部区域径向分割成内部区段和环形外部区段,由此将原料浆料和粉碎介质的混合物的流动形成为螺旋形流动 包括流过相对于所述导向环的循环流动路径的二次流; 并且旋转流动抑制装置设置在粉碎室内并且适于加强螺旋流的二次流动,从而稳定螺旋流。
    • 8. 发明授权
    • Method of producing fluoroapatite, fluoroapatite, and adsorption apparatus
    • 产生氟磷灰石,氟磷灰石和吸附装置的方法
    • US07740820B2
    • 2010-06-22
    • US12184459
    • 2008-08-01
    • Tsuyoshi IshikawaYoshiyuki OgawaraTomohiko YoshitakeYukiko Murakami
    • Tsuyoshi IshikawaYoshiyuki OgawaraTomohiko YoshitakeYukiko Murakami
    • C01B25/10C01B25/12
    • C01B25/455B01J20/048B01J20/281B01J20/3028B01J20/3078
    • A method of producing a fluoroapatite is provided. The method comprises preparing a slurry containing a hydroxyapatite which has at least one hydroxyl group, preparing a hydrogen fluoride-containing solution containing a hydrogen fluoride, mixing the hydrogen fluoride-containing solution with the slurry to obtain a mixture to thereby adjust a pH of the mixture in the range of 2.5 to 5, and reacting the hydroxyapatite with the hydrogen fluoride in the mixture in a state that the pH of the mixture is adjusted within the above range to thereby obtain the fluoroapatite by substituting the at least one hydroxyl group of the hydroxyapatite with fluorine atom of the hydrogen fluoride. The method can produce the fluoroapatite having improved acid resistance by reducing an impurity, such as ammonia, derived from a raw material to a low or very low level. Further, a fluoroapatite having high acid resistance is also provided. Furthermore, an adsorption apparatus using such a fluoroapatite is provided.
    • 提供一种制备氟磷灰石的方法。 该方法包括制备含有至少一个羟基的羟基磷灰石的浆料,制备含氟化氢的含氟化氢溶液,将含氟化氢的溶液与浆料混合,得到混合物,从而调节 混合物在2.5至5的范围内,并且使混合物中的羟基磷灰石与氟化氢在调节到上述范围内的状态下反应,从而通过将该磷灰石的至少一个羟基取代 羟基磷灰石与氟化氢的氟原子。 该方法可以通过将源自原料的诸如氨的杂质还原到低或非常低的水平来产生具有改善的耐酸性的氟磷灰石。 此外,还提供了具有高耐酸性的氟磷灰石。 此外,提供了使用这种氟磷灰石的吸附装置。