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    • 2. 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。
    • 3. 发明申请
    • METHOD OF PRODUCING FLUOROAPATITE, FLUOROAPATITE, AND ADSORTION APPARATUS
    • 生产氟磷酸盐,氟化物和吸附装置的方法
    • US20100130353A1
    • 2010-05-27
    • US12696431
    • 2010-01-29
    • Tsuyoshi ISHIKAWAYoshiyuki OgawaraTomohiko YoshitakeYukiko Murakami
    • Tsuyoshi ISHIKAWAYoshiyuki OgawaraTomohiko YoshitakeYukiko Murakami
    • C01B25/10B01J20/04
    • 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。
    • 7. 发明授权
    • Method for producing adsorbent, adsorbent, and adsorption apparatus
    • 生产吸附剂,吸附剂和吸附装置的方法
    • US07767179B2
    • 2010-08-03
    • US11559422
    • 2006-11-14
    • Tomohiko YoshitakeShintaro Kobayashi
    • Tomohiko YoshitakeShintaro Kobayashi
    • C01B25/32B01J20/04
    • B01J20/048B01J20/282B01J20/30
    • A method for producing an adsorbent which is stable toward a liquid such as an eluant and which shows excellent reproducibility in selectively adsorbing and separating an object compound, the method includes the steps of: preparing a base material having a surface, in which at least part of the surface of the base material is formed of a material containing as its major component apatite which is represented by the composition formula Ca10(PO4)6((OH)1-aXa)2; preparing a solution containing ions of at least one metal element; substituting at least part of Ca of the apatite by the at least one metal element by bringing the base material into contact with the solution to obtain a substituted base material; and subjecting the substituted base material to heat treatment at 50 to 400° C. for 0.5 to 10 hours, wherein the base material and the substituted base material are not exposed to a temperature exceeding 500° C. for 4 hours or longer from the substitution step to the completion of production of the adsorbent.
    • 一种对液体如洗脱剂稳定并且在选择性吸附和分离目标化合物中显示出优异再现性的吸附剂的方法,该方法包括以下步骤:制备具有表面的基材,其中至少部分 基材的表面由含有由组成式Ca10(PO4)6((OH)1-aXa)2表示的主要组分磷灰石的材料形成; 制备含有至少一种金属元素的离子的溶液; 通过使基材与溶液接触而用至少一种金属元素代替磷灰石的Ca的至少一部分,以获得取代的基材; 并将取代的基材在50〜400℃下进行0.5〜10小时的热处理,其中,基材和取代基材在不超过500℃的温度下从该替代物未暴露4小时以上 逐步完成吸附剂的生产。
    • 8. 发明申请
    • METHOD FOR PRODUCING ADSORBENT, ADSORBENT, AND ADSORPTION APPARATUS
    • 生产吸附剂,吸附剂和吸附装置的方法
    • US20070107600A1
    • 2007-05-17
    • US11559422
    • 2006-11-14
    • Tomohiko YoshitakeShintaro Kobayashi
    • Tomohiko YoshitakeShintaro Kobayashi
    • B01D53/02
    • B01J20/048B01J20/282B01J20/30
    • A method for producing an adsorbent which is stable toward a liquid such as an eluant and which shows excellent reproducibility in selectively adsorbing and separating an object compound, the method includes the steps of: preparing a base material having a surface, in which at least part of the surface of the base material is formed of a material containing as its major component apatite which is represented by the composition formula Ca10(PO4)6((OH)1−aXa)2; preparing a solution containing ions of at least one metal element; substituting at least part of Ca of the apatite by the at least one metal element by bringing the base material into contact with the solution to obtain a substituted base material; and subjecting the substituted base material to heat treatment at 50 to 400° C. for 0.5 to 10 hours, wherein the base material and the substituted base material are not exposed to a temperature exceeding 500° C. for 4 hours or longer from the substitution step to the completion of production of the adsorbent.
    • 一种对液体如洗脱剂稳定并且在选择性吸附和分离目标化合物中显示出优异再现性的吸附剂的方法,该方法包括以下步骤:制备具有表面的基材,其中至少部分 基材的表面由含有由主要组分磷灰石组成的材料形成,其由组成式C 10(PO 4)6表示, ((OH)1-a-X a)2