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A New Method for Synthesis of Fine Crystalline Magnesium Aluminate Spinel
Doklady Chemistry ( IF 0.8 ) Pub Date : 2019-08-01 , DOI: 10.1134/s0012500819080019 G. P. Panasyuk , I. V. Kozerozhets , M. N. Danchevskaya , Yu. D. Ivakin , G. P. Murav’eva , A. D. Izotov
Doklady Chemistry ( IF 0.8 ) Pub Date : 2019-08-01 , DOI: 10.1134/s0012500819080019 G. P. Panasyuk , I. V. Kozerozhets , M. N. Danchevskaya , Yu. D. Ivakin , G. P. Murav’eva , A. D. Izotov
A new method for synthesis of high-purity fine crystalline magnesium aluminate spinel (MgAl2O4) has been proposed by treating a mixture of finely divided MgO and aluminum hydroxide (Al(OH)3) or oxyhydroxide (AlOOH) with aqueous fluid under supercritical conditions (T = 380–400°С, Р\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{{{{{\text{H}}}_{{\text{2}}}}{\text{O}}}}$$\end{document} = 22.8–23.0 MPa). It has been demonstrated that the formation of the magnesium aluminate spinel structure occurs by a solid state mechanism. The new method of synthesis makes it possible to control the size (from 20 nm to 5 µm) and shape (spherical, lamellar, or bipyramidal) of the synthesized magnesium aluminate spinel (MgAl2O4) by varying the reaction conditions.
中文翻译:
一种合成细晶铝酸镁尖晶石的新方法
提出了一种合成高纯度细晶铝酸镁尖晶石 (MgAl2O4) 的新方法,该方法是在超临界条件下用水性流体处理细碎的 MgO 和氢氧化铝 (Al(OH)3) 或羟基氧化物 (AlOOH) 的混合物。 T = 380–400°С, Р\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{ upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{{{{{\text{H}}}_{{\text{2}}}}{\text{O}} }}$$\end{document} = 22.8–23.0 MPa)。已经证明铝酸镁尖晶石结构的形成是通过固态机制发生的。新的合成方法可以控制尺寸(从 20 nm 到 5 µm)和形状(球形、层状、
更新日期:2019-08-01
中文翻译:
一种合成细晶铝酸镁尖晶石的新方法
提出了一种合成高纯度细晶铝酸镁尖晶石 (MgAl2O4) 的新方法,该方法是在超临界条件下用水性流体处理细碎的 MgO 和氢氧化铝 (Al(OH)3) 或羟基氧化物 (AlOOH) 的混合物。 T = 380–400°С, Р\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{ upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{{{{{\text{H}}}_{{\text{2}}}}{\text{O}} }}$$\end{document} = 22.8–23.0 MPa)。已经证明铝酸镁尖晶石结构的形成是通过固态机制发生的。新的合成方法可以控制尺寸(从 20 nm 到 5 µm)和形状(球形、层状、