Production of Rutile TiO2 Pigment from Titanium Slag Obtained by Hydrochloric Acid Leaching of Vanadium-Bearing Titanomagnetite
文献类型：期刊论文
| 作者 | Zhao, Longsheng1,2,3; Liu, Yahui2,3; Wang, Lina2,3; Zhao, Hongxin2,3; Chen, Desheng2,3; Zhong, Binnian2,3; Wang, Jianchong2,3; Qi, Tao2,3 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2014-01-08 |
| 卷号 | 53期号:1页码:70-77 |
| 关键词 | sulfate-solution phase-transformation panzhihua ilmenite white pigment sulfuric-acid anatase hydrolysis dioxide kinetics decomposition |
| ISSN号 | 0888-5885 |
| 其他题名 | Ind. Eng. Chem. Res. |
| 中文摘要 | An alternative route was proposed for preparing rutile titanium dioxide (TiO2) white pigment. The process involves the digestion of titanium slag with sulfuric acid, subsequent hydrolysis of unenriched titanyl sulfate solution with ammonia, low-temperature calcination, and unseeded crystallization, producing a high-quality rutile TiO2 white pigment. The experimental data indicated that the conversion ratio of dissolved Ti in the unenriched titanyl sulfate solution was highly dependent on the NH3/TiO2 molar ratio. Under the optimal conditions, approximately 92.0% of dissolved Ti in the solution could be converted to metatitanic acid (H2TiO3) that was then calcined at 850 degrees C to form rutile TiO2 pigment with purity of 98.41% and mean particle diameter of 0.1-0.3 mu m. The presence of NH4+ during the hydrolysis improved the stability of the charged H2TiO3 particles and blocked further coagulation. The fast phase transformation at relatively low temperature could be attributed to the presence of self-generated rutile nuclei. In addition, the experimental validation for the unseeded precipitation of ferrous ammonia sulfate ((NH4)(2)Fe(SO4)(2)center dot 6H(2)O) in the crystallization step was demonstrated. |
| 英文摘要 | An alternative route was proposed for preparing rutile titanium dioxide (TiO2) white pigment. The process involves the digestion of titanium slag with sulfuric acid, subsequent hydrolysis of unenriched titanyl sulfate solution with ammonia, low-temperature calcination, and unseeded crystallization, producing a high-quality rutile TiO2 white pigment. The experimental data indicated that the conversion ratio of dissolved Ti in the unenriched titanyl sulfate solution was highly dependent on the NH3/TiO2 molar ratio. Under the optimal conditions, approximately 92.0% of dissolved Ti in the solution could be converted to metatitanic acid (H2TiO3) that was then calcined at 850 degrees C to form rutile TiO2 pigment with purity of 98.41% and mean particle diameter of 0.1-0.3 mu m. The presence of NH4+ during the hydrolysis improved the stability of the charged H2TiO3 particles and blocked further coagulation. The fast phase transformation at relatively low temperature could be attributed to the presence of self-generated rutile nuclei. In addition, the experimental validation for the unseeded precipitation of ferrous ammonia sulfate ((NH4)(2)Fe(SO4)(2)center dot 6H(2)O) in the crystallization step was demonstrated. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | SULFATE-SOLUTION ; PHASE-TRANSFORMATION ; PANZHIHUA ILMENITE ; WHITE PIGMENT ; SULFURIC-ACID ; ANATASE ; HYDROLYSIS ; DIOXIDE ; KINETICS ; DECOMPOSITION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000329586100009 |
| 公开日期 | 2014-05-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/8178]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Longsheng,Liu, Yahui,Wang, Lina,et al. Production of Rutile TiO2 Pigment from Titanium Slag Obtained by Hydrochloric Acid Leaching of Vanadium-Bearing Titanomagnetite[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(1):70-77. |
| APA | Zhao, Longsheng.,Liu, Yahui.,Wang, Lina.,Zhao, Hongxin.,Chen, Desheng.,...&Qi, Tao.(2014).Production of Rutile TiO2 Pigment from Titanium Slag Obtained by Hydrochloric Acid Leaching of Vanadium-Bearing Titanomagnetite.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(1),70-77. |
| MLA | Zhao, Longsheng,et al."Production of Rutile TiO2 Pigment from Titanium Slag Obtained by Hydrochloric Acid Leaching of Vanadium-Bearing Titanomagnetite".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.1(2014):70-77. |
入库方式： OAI收割
来源：过程工程研究所
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