| 从攀钢高炉渣中提取分离TiO_2制备高钛渣研究 |
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| 引用本文： | 马光强,张云,邹敏.从攀钢高炉渣中提取分离TiO_2制备高钛渣研究[J].四川理工学院学报(自然科学版),2007,20(6):95-97. |
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| 作者姓名： | 马光强 张云 邹敏 |
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| 作者单位： | 西川大学材料学院,成都,610065 |
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| 摘 要： | 研究利用TjO_2对酸碱的稳定性,采用低温下酸解、熔融状态下碱熔的方法除去高炉渣中除TiO_2以外的所有可溶性杂质,从而制备出高钛渣。其具体方法是:将粒度为80目～200目的高炉渣用5mol/L～7mol/L的盐酸在60℃～100℃的条件下反应4h～8h,除去钙、镁、铝、铁等元素的酸溶性杂质,酸分解后的产物经过滤、酸洗后,滤渣与1:1.6～1:1.8的NaOH在600℃～800℃共熔1小时左右后用pH=11～13的NaOH溶液洗涤,使SiO_2以NaSiO_3的方式除去,从而得到二氧化钛质量百分比为70%左右的高钛渣。
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| 关 键 词： | 高炉渣 二氧化钛 高钛渣 分离 |
| 文章编号： | 1673-1549（2007）06-0095-03 |
| 收稿时间： | 2007-04-05 |
| 修稿时间： | 2007年4月5日 |
Study on the Synthesis of High Titanium Slag Extracting TiO2 from Blast Furnace Slag of Pangang |
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| MA Guang-qiang,ZHANG Yun,ZOU Min.Study on the Synthesis of High Titanium Slag Extracting TiO2 from Blast Furnace Slag of Pangang[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2007,20(6):95-97. |
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| Authors: | MA Guang-qiang ZHANG Yun ZOU Min |
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| Abstract: | High titanium slag was prepared by removing soluble impurities except TiO_2 via normal temperature acidic decomposition and fusion with alkali,using the stability of TiO_2 to acid and alkali.Blast furnace slag with particle size distribution from 80 mu to 200 mu reacted in hydrochloric acid(5 mol/L～7mol/L)at 60℃～10℃for 4h～8h,and the acidic soluble impurities such as calcium,magnesium,aluminum and iron were removed.Then,the production from acidic decomposition process was filtrated,acidic washing. The filter residue codissolved with 1:1.6～1:1.8 sodium hydroxide at 600℃～800℃for about 1h,then washing with sodium hydroxide solution with pH=11～13,removing SiO_2 as Na_2SiO_3.At last,high titanium slag with titania(70%,wt%)was obtained. |
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| Keywords: | Blast furnace slag titania high titanium slag seperation |
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