• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>TMS annual meeting exhibition;Energy technologies and carbon dioxide management symposium >Evaporation Removal of Boron in Molten Silicon Using Reactive Fluxes
【24h】

Evaporation Removal of Boron in Molten Silicon Using Reactive Fluxes

机译：活性助焊剂去除熔融硅中的硼

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

摘要

In order to optimize the B removal during slag-refining process for solar-grade silicon production, a new process for the removal of B in molten Si was proposed based on the principle of oxidized chlorination and evaporation. B can be generated and evaporated in the form of B-containing gas (BOCl) from molten Si using CaO-SiO_2-CaCl_2 slag system. Compared with the binary systems of CaO-CaCl_2 and SiO_2-CaCl_2 slag, the ternary slag system CaO-SiO_2-CaCl_2 showed a better potential (90 pct) for B removal at 1723 K for 2 h. Moreover, the diffusion coefficient (D) of B in the slag was also determined using tube-molten pool method. Through this, it was found that the rate-limiting step of B-removal in the slag refining process is controlled by B transfer in the slag interface and surface.
机译：为了优化太阳能级硅渣精制过程中的硼去除，基于氧化氯化和蒸发原理，提出了一种去除熔融硅中硼的新工艺。可以使用CaO-SiO_2-CaCl_2炉渣系统从熔融的硅中生成B并以含B气体（BOCl）的形式蒸发。与CaO-CaCl_2和SiO_2-CaCl_2炉渣的二元体系相比，三元炉渣系统CaO-SiO_2-CaCl_2在1723 K下2 h脱B的潜力更高（90 pct）。另外，还使用管熔池法测定了B在炉渣中的扩散系数（D）。由此发现，在炉渣精炼过程中除硼的限速步骤是由炉渣在界面和表面的硼转移控制的。

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