• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Revista de metalurgia >Algunos aspectos cinéticos de las reacciones de sólidos con cloro
【24h】

Algunos aspectos cinéticos de las reacciones de sólidos con cloro

机译：固体与氯反应的一些动力学方面

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present paper describes detailed kinetics investigations on some selected chlorine-solid reactions through thermogravimetric measurements. The solids studied in this article include chemical pure oxides and sulfides as well as their natural bearing materials. The chlorinating agents employed are gaseous mixtures of Cl 2 +N 2 (chlorination), Cl 2 +O 2 (oxychlorination), and Cl 2 +CO (carbochlorination). Results are presented as effects of various parameters on the reaction rate of these solids with these chlorinating agents. It was observed that the reactivity of these solids towards different chlorinating agents varied widely. Sulfides could be chlorinated at room temperature, while carbochlorination of chromium (III) oxide was possible only above 500 °C. The variation of the chlorination rate of these complex materials with respect to gas velocity, composition and temperature enabled us to focus some light on the plausible reaction mechanisms and stoichiometries. The obtained results were used for selective removal of iron from chromite concentrates, extraction of valuable metals from sulfide materials, purification of MgO samples, etc.
机译：本文描述了通过热重测量对某些选定的氯-固反应的详细动力学研究。本文研究的固体包括化学纯的氧化物和硫化物，以及它们的天然轴承材料。所使用的氯化剂是Cl 2 + N 2（氯化），Cl 2 + O 2（氧氯化）和Cl 2 + CO（碳氯化）的气体混合物。结果显示为各种参数对这些固体与这些氯化剂反应速率的影响。观察到这些固体对不同氯化剂的反应性差异很大。硫化物可以在室温下进行氯化，而氧化铬（III）的碳氯化仅在高于500°C时才可能进行。这些复杂材料的氯化速率相对于气体速度，组成和温度的变化使我们能够将一些光集中在合理的反应机理和化学计量上。获得的结果用于从铬铁矿精矿中选择性去除铁，从硫化物材料中提取有价金属，纯化MgO样品等。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号