预氧化处理对云南钛精矿浸出过程粉化的影响

林凡; 杨剑; 陈奎; 赵冬; 刘松利; 刘国庆

doi:10.7513/j.issn.1004-7638.2016.01.002

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预氧化处理对云南钛精矿浸出过程粉化的影响

doi: 10.7513/j.issn.1004-7638.2016.01.002

1. 重庆大学材料科学与工程学院, 重庆 400044;
2. 攀枝花学院资源与环境工程学院, 四川攀枝花 617000

详细信息

作者简介:
林凡(1991-),男,四川仪陇人,在读硕士,主要从事有色与钢铁冶金研究工作

中图分类号: TF823,TF046
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- 文章访问数: 19
- HTML全文浏览量: 6
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- 被引次数: 0
出版历程
- 收稿日期: 2015-05-21

Effect of Pre-oxidation on Pulverization of Yunnan Titanium Concentrate during Hydrochloric Acid Leaching

1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
2. School of Resources and Environmental Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China

摘要

摘要: 人造金红石作为天然金红石的优质代用品,大量用于生产氯化法钛白和海绵钛。针对云南钛精矿相关物化特性,采用预氧化钛精矿、盐酸浸取的方法制备人造金红石,研究预氧化处理对浸出率及粉化的影响。结果表明:预氧化处理改变了钛精矿结构,解决了盐酸浸出过程的粉化问题。在盐酸浓度为20%、酸矿比为5:1时,加热到沸腾浸出在750℃时预氧化30 min后的钛精矿,得到的人造金红石粒度小于74μm的矿粒仅占3.29%,品位为77.1%。
- 人造金红石 /
- 云南钛精矿 /
- 预氧化处理 /
- 盐酸浸出 /
- 粉化
Abstract: Synthetic rutile as a good substitute for natural rutile is greatly used for production of titanium dioxide by chlorination process and sponge titanium.According to the physical and chemical properties of Yunnan titanium concentrate,pre-oxidation and hydrochloric acid leaching method was used to prepare synthetic rutile for researching the effect of pre-oxidation treatment on the leaching rate and pulverization.The results show that the structure of titanium concentrate is changed and the pulverization during hydrochloric acid leaching process is resolved by pre-oxidation.With 20% hydrochloric acid and 5:1 of acid/ore ratio,heating to boiling for leaching the titanium concentrate oxidized at 750℃ for 30 min can obtain synthetic rutile with only 3.29% of particles less than 74μm and 77.1% of grade.
- synthetic rutile /
- Yunnan titanium concentrate /
- pre-oxidation treatment /
- hydrochloric acid leaching /
- pulverization