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金属矿山 ›› 2016, Vol. 45 ›› Issue (11): 181-183.

• 综合利用 • 上一篇    下一篇

某高炉瓦斯灰硫酸浸锌试验

张晋霞1,2,邹玄1,王龙1,李力3,牛福生1,2   

  1. 1.华北理工大学矿业工程学院,河北 唐山 063009;2.河北省矿业开发与安全技术重点实验室,河北 唐山 063009;3.唐山钢铁集团新事业发展有限公司,河北 唐山 063000
  • 出版日期:2016-11-15 发布日期:2017-02-15
  • 基金资助:

    基金项目:河北省自然科学基金资助项目(编号:E2015209117),河北省科技厅项目(编号:15213812),研究生创新项目(编号:2016S18)。

Leaching Zinc with Sulfuric Acid from Blast Furnace Gas Ash

Zhang Jinxia1,2,Zou Xuan1,Wang Long1,Li Li3,Niu Fusheng1,2   

  1. 1.College of Mining Engineering,North China University of Science and Technology,Tangshan 063009,China;2.Hebei Province Key Laboratory of Mining Industry Development and Safe Technology,Tangshan 063009,China;3.Tangshan Iron & Steel Group New Career Development Co.,Ltd.,Tangshan 063000,China.
  • Online:2016-11-15 Published:2017-02-15

摘要: 某高炉瓦斯灰粒度较细、成分较复杂,主要成分有氧化钙、赤铁矿、方解石、氧化锌、炭等,铁、锌、碳含量分别为27.44%、8.76%、13.51%,主要含锌矿物为氧化锌,含铁矿物为赤铁矿,碳主要以焦炭的形式存在。为确定硫酸浸取锌的合适硫酸浓度、液固比和浸出时间,进行了3因素3水平正交试验。结果表明,硫酸浓度对锌浸出率影响最显著,其次是液固比;在硫酸浓度为0.6 moL/L、液固比为7 mL/g、浸出时间为25 min情况下硫酸浸锌,锌浸出率达97.03%。

关键词: 高炉瓦斯灰, 硫酸浸锌, 正交试验

Abstract: The blast furnace gas ash has features of fine particle size and complex composition,and its main ingredients are calcium oxide,hematite,calcite,zinc oxide,carbon with the content of iron,zinc and carbon 27.44%,8.76% and 13.51% respectively.The main zinc-containing is zinc oxide,iron-containing ore is hematite,and carbon mainly exists in the form of coke.In order to determine the appropriate sulfate concentration,solid-liquid ratio and leaching time of sulfuric acid leaching zinc,the 3 factors 3 levels orthogonal test was carried out.The results showed that the concentration of sulfuric acid played an important role in zinc leaching rate,followed by liquid-solid ratio;At the same time,it showed that when the sulfuric acid concentration was 0.6 moL/L,the liquid-solid ratio was 7 mL/g,leaching time was 25 min,the zinc leaching rate reached at 97.03%.

Key words: Blast furnace gas ash, Leaching zinc with sulfuric acid, Orthogonal test