• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>TMS annual meeting exhibition >DETERMINATION OF COKE CALCINATION LEVEL AND ANODE BAKING LEVEL – APPLICATION AND REPRODUCIBILITY OF L-SUB-C BASED METHODS
【24h】

DETERMINATION OF COKE CALCINATION LEVEL AND ANODE BAKING LEVEL – APPLICATION AND REPRODUCIBILITY OF L-SUB-C BASED METHODS

机译：焦炭煅烧量和阳极焙烧量的测定-基于L-Sub-C的方法的应用和重现性

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

摘要

The average crystallite size (L-sub-c or L_C) is an importantproperty of carbon materials for aluminium electrolysis; L_C isused for characterizing the petroleum coke calcination level andsometimes also to estimate the baking level of anodes. This paperdiscusses problems when comparing L_C results from differentlaboratories using precision statements from ASTM and ISOstandards. The main cause is peak broadening errors introducedby the XRD instrument and sample preparation. The L_C standardsASTM D5187 and ISO 20203 neglect these errors. Two ways aredemonstrated to minimize the peak broadening effect to improvethe standards, 1) by using thin sample thickness and 2) byembedding the coke in a high absorptive medium. Using L_C todetermine the anode baking level is discussed and three practicesare discussed; measurement on the anode directly or two methodsfor using a reference coke that is baked with the anode. It isshown that precision is better for the latter methods. Especially forunderbaked anodes a baking level estimated from measurement ofthe anode L_C can be misleading.
机译：平均晶粒尺寸（L-sub-c或L_C）很重要 铝电解用碳材料的性能; L_C是 用于表征石油焦煅烧水平和 有时还需要估计阳极的烘烤水平。这篇报告 讨论比较不同来源的L_C结果时的问题 实验室使用ASTM和ISO的精度声明 标准。主要原因是引入了峰展宽误差 由XRD仪器和样品制备。 L_C标准 ASTM D5187和ISO 20203忽略了这些错误。两种方法是 表现出最小化峰展宽效果的改善 标准，1）使用薄样品厚度，2）通过 将焦炭嵌入高吸收性介质中。使用L_C 确定阳极烘烤水平的讨论和三种做法 被讨论;直接在阳极上测量或两种方法 用于使用与阳极一起烘烤的参比焦炭。它是 结果表明，对于后一种方法，精度更高。特别是对于 欠烘烤阳极的烘烤水平可通过测量 阳极L_C可能会产生误导。

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