R. Rumyantsev, A. A. Kournikova, A. A. Ilyin, A. V. Afineevsky, D. A. Prozorov, N. N. Smirnov, T. N. Borisova, E. S. Severgina
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引用次数: 0
摘要
本研究采用 X 射线相、X 射线衍射、同步热分析、扫描电子显微镜、氮的低温吸附-解吸等方法,研究了 CuO/ZnO/?-Al2O3 复合材料的获得过程,该复合材料可用作甲醇生产和一氧化碳转化大吨位工艺催化剂的主要成分。研究确定了制备方法、加工性质和强度对所得前驱体的相组成以及所得复合材料的物理化学特性的影响。研究了无水 CuO/ZnO/?-Al2O3 氧化物混合物、氧化物与碳酸铵和乙二酸混合物在机械化学活化阶段发生的过程。确定了获得具有发达比表面积和多孔结构的 CuO/ZnO/?-Al2O3 复合材料的最佳参数。
INVESTIGATION OF THE CONDITIONS OF CERAMIC AND MECHANOCHEMICAL SYNTHESIS OF COMPOSITES CuO/ZnO/?-Al2O3
In this work, using the methods of X-ray phase, X-ray diffraction, synchronous thermal analysis, scanning electron microscopy, low-temperature adsorption-desorption of nitrogen, the process of obtaining CuO/ZnO/?-Al2O3 composites, which can be used as the main component of catalysts for large-tonnage processes for methanol production and monoxide conversion, was studied. carbon. The influence of the method of preparation, the nature and intensity of processing on the phase composition of the resulting precursors and the physicochemical properties of the resulting composites was established. The processes occurring at the stage of mechanochemical activation of a mixture of anhydrous CuO/ZnO/?-Al2O3 oxides, a mixture of oxides with ammonium carbonate and ethanedienic acid have been studied. The optimal parameters for obtaining CuO/ZnO/?-Al2O3 composites with a developed specific surface area and porous structure have been determined.