Study on the occurrence state of substances in sublimation sulfur from the tail gas of acid hydrolysis of titanium concentrate

Li Ping; Quan Xuejun; Li Li; Wang Haibo; Chen Xinhong; Qi Xueqiang; Li Gang; Xiang Quanjin

doi:10.7513/j.issn.1004-7638.2024.01.013

Volume 45 Issue 1

Feb. 2024

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Li Ping, Quan Xuejun, Li Li, Wang Haibo, Chen Xinhong, Qi Xueqiang, Li Gang, Xiang Quanjin. Study on the occurrence state of substances in sublimation sulfur from the tail gas of acid hydrolysis of titanium concentrate[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 84-90. doi: 10.7513/j.issn.1004-7638.2024.01.013

Citation:

Li Ping, Quan Xuejun, Li Li, Wang Haibo, Chen Xinhong, Qi Xueqiang, Li Gang, Xiang Quanjin. Study on the occurrence state of substances in sublimation sulfur from the tail gas of acid hydrolysis of titanium concentrate[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 84-90. doi: 10.7513/j.issn.1004-7638.2024.01.013

Citation:

Li Ping, Quan Xuejun, Li Li, Wang Haibo, Chen Xinhong, Qi Xueqiang, Li Gang, Xiang Quanjin. Study on the occurrence state of substances in sublimation sulfur from the tail gas of acid hydrolysis of titanium concentrate[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(1): 84-90. doi: 10.7513/j.issn.1004-7638.2024.01.013

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Study on the occurrence state of substances in sublimation sulfur from the tail gas of acid hydrolysis of titanium concentrate

doi: 10.7513/j.issn.1004-7638.2024.01.013

1.
School of Chemistry and Chemical Engineering , Chongqing University of Technology, Chongqing 400054, China
2.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
3.
Pangang Group Chongqing Titanium Industry Co., Ltd., Chongqing 400054, China

Received Date: 2023-10-25
Publish Date: 2024-02-29

Abstract

Abstract

At present, the manufacturers of titanium dioxide produced by sulfuric acid process titanium dioxide face the problem that sublimed sulfur in the acid hydrolysis tail gas clogs the pipeline, which affects the continuity of the production of titanium dioxide by this process. In this paper, XRD, SEM and EDS characterizations were used to study the structure, composition, distribution of main elements and occurrence of impurity elements in factory sublimed sulfur powder. The results show that the main component of sublimed sulfur powder is S₈, in which the main impurity elements are O, Fe, Ti, Si, Ca, Mg, Al, Mn and V, and most of the titanium and iron are distributed in the ilmenite and Fe₂TiO₅ phase, and a small part of the iron is distributed in the silicate phase, in the form of Fe₂SiO₄. Calcium is distributed in calcium sulfate and silicate phases, and exists in the form of CaSiO₃. Silicon mainly exists in the form of SiO₂ and silicate. Magnesium is distributed in MgTiO₃ and MgFeAlO₄ phases. Aluminum exists in the form of MgFeAlO₄. Manganese is distributed in ilmenite in the form of metal oxidation. The study of the occurrence state of sublimed sulfur in the exhaust gas of titanium dioxide acid-hydrolysis by sulfuric acid process can provide a basis for the study of condensation behavior of sublimed sulfur in the exhaust gas of post-sequence acid-hydrolysis.
- titanium concentrate,
- acid hydrolysis exhaust gas,
- sublimation sulfur,
- occurrence state

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References(15)

References

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