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Role of aluminum salt on thermal hydrolysis of titanyl sulfuric-chloric mixture acid solution
Tian, Ming1,2; Liu, Yahui1,2; Wang, Lina1,2; Chen, Desheng1,2; Zhao, Hongxin1,2; Meng, Fancheng1,2; Zhen, Yulan1,2; Qi, Tao1,2
2021-09-01
Source PublicationJOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN2238-7854
Volume14Pages:2486-2496
AbstractTo make use of scrap perovskite titanium slag to produce metatitanic acid, a new method based on the high efficiency decomposition ability of sulfuric-chloric mixture acid (SCMA) has been proposed. Because Al is one of the most common elements existing in its raw state, Al3+ has become the main impurity in titanium solutions after decomposition, which affects the performance of related products. Consequently, the role of Al on the thermal hydrolysis of Ti in the SCMA solution was investigated in this study. With the addition of Al3+, a lower hydrolysis ratio was obtained at a low reaction temperature (130 degrees C). Moreover, the particles of metatitanic acid displayed a ball-shaped morphology and narrow particle distribution with a D-50 of 1.4-2.0 mu m. According to the crystal structures of Al3+, it is presumed that the priority order of ligand is SO42- > H2O > Cl-. The addition of Al3+ increases the growth rate of the a- and b-axes but reduces the growth rate of the c-axis. The results presented here confirm the influence of Al3+ in the control of nucleation and growth process during the hydrolysis to achieve qualified metatitanic acid products. (C) 2021 The Authors. Published by Elsevier B.V.
KeywordAl3+ impurity Hydrolysis Sulfuric-chloric mixture acid Particle size Grain size Metatitanic acid
DOI10.1016/j.jmrt.2021.07.121
Language英语
WOS KeywordSULFATE-SOLUTION ; WHITE PIGMENT ; TIO2 ; KINETICS ; CLUSTER ; RAMAN ; SLAG ; TETRACHLORIDE ; ADSORPTION ; SPECIATION
Funding ProjectKey Research Pro-gram of Frontier Sciences of Chinese Academy of Sciences[22078343] ; Key Research Pro-gram of Frontier Sciences of Chinese Academy of Sciences[51804289] ; Key Research Pro-gram of Frontier Sciences of Chinese Academy of Sciences[21908231] ; [QYZDJ-SSW-JSC021]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationKey Research Pro-gram of Frontier Sciences of Chinese Academy of Sciences
WOS IDWOS:000702874100007
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50393
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Yahui; Qi, Tao
Affiliation1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Tian, Ming,Liu, Yahui,Wang, Lina,et al. Role of aluminum salt on thermal hydrolysis of titanyl sulfuric-chloric mixture acid solution[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,14:2486-2496.
APA Tian, Ming.,Liu, Yahui.,Wang, Lina.,Chen, Desheng.,Zhao, Hongxin.,...&Qi, Tao.(2021).Role of aluminum salt on thermal hydrolysis of titanyl sulfuric-chloric mixture acid solution.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,14,2486-2496.
MLA Tian, Ming,et al."Role of aluminum salt on thermal hydrolysis of titanyl sulfuric-chloric mixture acid solution".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 14(2021):2486-2496.
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