Research on Preparing Technology of Synthetic Rutile by Hydrochloric Acid Leaching
-
摘要: 以攀枝花钛铁矿为原料,采用预氧化—前磁选—酸浸—过滤、洗涤—煅烧—后磁选工艺制取高品质人造金红石。在某钛黄粉厂1 000 t/a生产装备上,针对酸浸工序,研究了浸出矿种类、浸出时间、浸出温度、酸浓度以及酸矿比对浸出效果的影响。通过条件优化试验和稳定试验,最终使产品细料率基本控制在15%以下,全流程钛总收率≥92%,人造金红石品位≥92%,并成功地将粗、细金红石分离。Abstract: The high grade synthetic rutile was prepared from Panzhihua ilmenite by preoxidation—fore-magnetic separation—acid leaching—filtration and lavation—calcination—after-magnetic separation.The influence of process parameters,such as ore property,leaching time,leaching temperature,hydrochloric acid concentration and the ratio of hydrochloric to ore on the acid leaching results were discussed under a manufacturing equipment of 1 000 t/a.Through the optimized testing and stability experiment,the thinning rate of product was controlled blow 15%,the recovery rate of titanium in total process was beyond 92% and the TiO2 content of thick synthetic rutile was beyond 92%.The thin synthetic rutile was successfully separated from thick synthetic rutile.
-
Key words:
- synthetic rutile /
- ilmenite /
- acid leaching /
- thinning rate of product
-
点击查看大图
计量
- 文章访问数: 96
- HTML全文浏览量: 13
- PDF下载量: 3
- 被引次数: 0
下载:
