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首页> 外文会议>Advances in bioceramics and porous ceramics V >OBTAINING POROUS CORUNDUM CERAMICS BY UTILIZATION OF WASTE RICE HUSK - INVESTIGATION OF COMPOSITION, STRUCTURE AND THERMAL DEGRADATION OF RICE HUSK
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OBTAINING POROUS CORUNDUM CERAMICS BY UTILIZATION OF WASTE RICE HUSK - INVESTIGATION OF COMPOSITION, STRUCTURE AND THERMAL DEGRADATION OF RICE HUSK

机译：利用稻壳获得多孔刚玉陶瓷-稻壳的组成，结构和热降解研究。

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摘要

The aim of the present study is to develop a series of porous ceramic materials providing possibilities to control of their porous structure. Two types of industrial waste were used as initial materials - aluminium oxide from oil refining industry and waste rice husk. The methods of X- ray analysis, differential thermal analysis, scanning electronic microscopy and mercury porosimetery were used mainly. The rice husk are a potential source of silica containing compounds. The white rice husk ash containing more than 90 mass.% SiO_2 and activated rice husk carbon were obtained thermally in this study. The thermal degradation and the structure of rice husk were investigated. The waste γ - Al_2O_3 is industrial waste from oil industry. It was used as adsorbent or carrier catalyst in several production lines of the petrochemical plant, so it was contaminated with different by type and amount impurities. The contents of impurities decreased after thermal treatment at 1000 ℃ followed by chemical treatment of the product with HC1. Using the recycled alumina and rice husk a series of porous corundum materials were synthesized.
机译：本研究的目的是开发一系列多孔陶瓷材料，以提供控制其多孔结构的可能性。两种类型的工业废料被用作初始原料-炼油业的氧化铝和废稻壳。主要使用X射线分析，差热分析，扫描电子显微镜和水银孔率法。稻壳是含二氧化硅化合物的潜在来源。在本研究中，通过热法获得了含90％（质量）以上的SiO_2和活性稻壳碳的白稻壳灰。研究了稻壳的热降解和结构。废物γ-Al_2O_3是石油工业产生的工业废物。它在石化厂的几条生产线中用作吸附剂或载体催化剂，因此受到类型和数量不同杂质的污染。 1000℃热处理后，用HCl化学处理产品，杂质含量降低。使用回收的氧化铝和稻壳，合成了一系列多孔刚玉材料。

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  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US);Daytona Beach FL(US)
  • 作者

    Irena Markovska; Bogdan Bogdanov; Dimitar Georgiev; Yancho Hristov;

  • 作者单位

    Department of Silicate Tehnology, Assen Zlatarov University, 1 Prof. Yakimov Str., 8010 Bourgas, Bulgaria;

    Department of Silicate Tehnology, Assen Zlatarov University, 1 Prof. Yakimov Str., 8010 Bourgas, Bulgaria;

    Department of Silicate Tehnology, Assen Zlatarov University, 1 Prof. Yakimov Str., 8010 Bourgas, Bulgaria;

    Department of Silicate Tehnology, Assen Zlatarov University, 1 Prof. Yakimov Str., 8010 Bourgas, Bulgaria;

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