首页> 外文会议>International conference on powder metallurgy particulate materials >INVESTIGATION INTO PROPERTIES OF BORON OXIDE PRODUCED FROM BORIC ACID IN FLUIDIZED BED
【24h】

INVESTIGATION INTO PROPERTIES OF BORON OXIDE PRODUCED FROM BORIC ACID IN FLUIDIZED BED

机译:流化床硼酸生产的硼氧化物性能研究

获取原文

摘要

Boron oxide (B_2O_3) was produced from boric acid (H_3BO_3) in a fludized bed reactor in two stages. At he first stage, the boric acid was converted to metaboric acid (H_3BO_3→HBO_2 + H_2O) at a bed temperature of 130°C and then boron oxide was obtained by dehydration of metaboric acid in the second stage (2HBO_2 → B_2O_3 + H_2O) at a bed temperature between 225-235°C. Fabricated boron oxide had a high bulk density value of around 0,61 g/cm~3 and a high purity of over 98,5%. The mean particle size of boron oxide was about 650 μm. X-ray diffraction studies indicated that fabricated boron oxide powder was amorphous. SEM investigation of boron oxide powder indicated that boron oxide particles had a shape of platelets within large aggregates of between 300-600 μm.
机译:氧化硼(B_2O_3)在两个阶段中用硼化床反应器中的硼酸(H_3BO_3)制备。在他第一阶段,在130℃的床温处将硼酸转化为替代酸(H_3BO_3→HBO_2 + H_2O),然后通过在第二阶段(2HBO_2→B_2O_3 + H_2O)中脱水而获得氧化硼。在225-235°C之间的床温处。制造的硼氧化物的高堆积密度值约为0.61g / cm〜3,高纯度超过98.5%。氧化硼的平均粒度为约650μm。 X射线衍射研究表明,制造的硼氧化物粉是无定形的。氧化硼粉末的SEM研究表明,氧化硼颗粒的血小板形状在300-600μm之间的大聚集体内。

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