Gongye shui chuli对比研究了铁改性膨润土（Fe-BT）和钙改性膨润土（Ca-BT）对水中磷酸盐的吸附效果及其抑制底泥磷释放的能力。结果显示，Fe-BT对水中磷酸盐的吸附动力学符合Elovich模型。溶液初始pH升高会抑制Fe-BT对磷酸根离子的吸附；高NaCl浓度有利于Fe-BT对磷酸盐的吸附；阳离子，尤其是二价阳离子能促进Fe-BT对磷酸盐的吸附，而HCO3-抑制吸附过程。Fe-BT对磷酸盐的吸附机理是Fe—OH与磷酸盐形成Fe—O—P内层络合物。底泥培养实验结果表明，Fe-BT能够有效抑制底泥磷释放 ...
王凤君 +3 more
doaj
[Preparation and <i>in vitro</i> biological performance evaluation of tannic acid-Brushite <i>in situ</i> composite bone cement material]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZeng C, Tang J, Li T, Gao W.
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, 2018 采用硫酸酸解与有机溶剂萃取相结合的技术手段对磷石膏进行净化处理,脱除包裹及黏附的石英及无机碳等不溶性杂质;考察酸解温度、硫酸浓度、液固质量比、反应时间等因素对磷石膏净化效果的影响。磷石膏经深度净化后获得纯度大于99%、白度大于90%的无水硫酸钙中间产品,与高浓度CO_2气体在加压条件下发生碳酸化反应所得碳酸钙产品纯度大于99%,蓝光白度大于92%,平均粒径6.2μm ...
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Zhong Nan Da Xue Xue Bao Yi Xue BanChen Q, Niu C, Guo Z, Xiang Y.
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Nan Fang Yi Ke Da Xue Xue BaoXu C, Han Y, Cheng N, Dong J.
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Zhonghua Xue Ye Xue Za ZhiZhang J, Chen M.
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Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiKang R, Yuan W, Zhu Y.
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Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiShan B +6 more
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