Recovery of titanium compounds from Ti-enriched product of alkali melting Ti-bearing blast furnace slag by dilute sulfuric acid leaching

被引：47
作者：
He, Siqi [1 ,2 ]
Sun, Hongjuan [1 ,2 ]
Tan, Daoyong [1 ]
Peng, Tongjiang [1 ,2 ]
机构：
[1] Southwest Univ Sci & Technol, Key Lab, Minist Educ Solid Waste Treatment & Resource Recy, Mianyang 621010, Sichuan, Peoples R China
[2] Southwest Univ Sci & Technol, Inst Mineral Mat & Applicat, Mianyang 621010, Sichuan, Peoples R China
来源：
SELECTED PROCEEDINGS OF THE TENTH INTERNATIONAL CONFERENCE ON WASTE MANAGEMENT AND TECHNOLOGY | 2016年 / 31卷
关键词：
Ti-enriched product; Ti-bearing blast furnace slag; acid leaching; kinetics of reaction;
D O I：
10.1016/j.proenv.2016.03.003
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The extraction of titanium from the Ti-enriched product which was prepared from Ti-bearing blast furnace slag by alkali roasting and water leaching, was investigated by dilute sulfuric acid leaching. The effects of sulfuric acid mass fraction, the ratio of acid to slag, reaction temperature and time on the extraction rate of titanium were studied in this paper. The results show that titanium recovery of 92.62 pct was obtained under the conditions of sulfuric acid mass fraction of 50 pct, ratio of acid to slag of 1.5:1, reaction temperature of 160 degrees C and reaction time of 2.5 hours. The kinetic study indicates that the acid leaching reaction was controlled by the rate of diffusion, and kinetics equation of drozdov can be described the acid leaching reaction. (C) 2016 The Authors. Published by Elsevier B.V.
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页码：977 / 984
页数：8
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