Conversion of Waste Incineration Fly Ash into Calcium Phosphates
Conversion of Waste Incineration Fly Ash into Calcium Phosphates
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垃圾焚烧飞灰转化为磷酸钙
DOI：
10.4164/sptj.42.467
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发表时间：
2005
影响因子：
--
通讯作者：
R. Hino
中科院分区：
文献类型：
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作者：
Hidekazu Tanaka;Kazumasa Ikari;R. Hino
为了将垃圾焚烧飞灰（Fa）转化为磷酸钙，在85°C下用Na 3 PO 4溶液处理Fa 24 h，并通过各种手段表征所得材料。粉末X射线衍射、X射线荧光和热分析表明，Fa中含有大量的CaCO 3和Ca（OH）2。通过在Na_3 PO_4溶液中处理Fa，溶解Fa中的CaCO_3和Ca（OH）_3以形成羟基磷灰石钙（Ca_（10）（PO_4）_6（OH）_2：Hap）。在处理液中加入NHO 3溶液，加速了Ca（OH）2和CaCO 3在Fa中的溶解，使Fa中PO 3 -4-的吸附量增加，生成了磷酸氢二钙（CaHPO 4）和Hap。这些结果表明，Fa中的钙化合物可作为合成磷酸钙的钙源。
In order to convert waste incineration fly ash (Fa) into calcium phosphates, Fa was treated with Na3PO4 solutions at 85°C for 24h and the resulting materials were characterized by various means. Powder X-ray diffraction, X-ray fluorescence and thermal analysis indicated that the Fa contains large amounts of CaCO3 and Ca(OH)2. By treating the Fa in Na3PO4 solution, CaCO3 and Ca(OH)3in the Fa were dissolved to form calcium hydroxyapatite (Ca10(PO4)6(OH)2: Hap). Adding NHO3 solution in the treating solution accelerated the dissolution of CaCO3 and Ca(OH)2 in the Fa, leading to an increase in the adsorbed amount of PO3-4 and the formation of dicalcium phosphate unhydrate (CaHPO4) and Hap. These results indicated that the calcium compounds in Fa are available for calcium source to synthesize the calcium phosphates.
使用价电子控制的金属催化剂设计
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
小清水郁;上岡英史;尾上勇介;K.Hagihara;蔡 安邦
通讯作者：
蔡 安邦