Reaction engineering of continuous crystallization of β-ammonium tetramolybdate in concentric structure reactor and its application
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Jiangtao Li
,
Zhichao Li
Abstract
β-ammonium tetramolybdate [β-(NH4)2Mo4O13] is an important product of molybdenum metallurgy because of its uniform crystal structure and excellent thermal stability. The yield of molybdenum strip produced with β-(NH4)2Mo4O13 as raw material and various processing properties have been significantly improved. However, the crystallization process of β-(NH4)2Mo4O13 is very complex, including neutralization, polymerization, nucleation, and crystal growth stages, resulting in a variety of polymerization morphology. In this work, a concentric structure reactor was used to segment these stages with directional regulation of each stage. Residence time distribution (RTD) was used to evaluate the simulation of flow field characteristics in the concentric structure reactor. Determination of the influence of inlet-outlet positions, size and position of paddle, and baffle setting on the fluid behavior in a single tank suggested measures to improve the abnormal flow condition and reduce the dead zone volume fraction. In the concentric structure reactor, the dead zone volume fraction was only 2.36% when the clapboards were arranged alternately in an up-down design, using an inlet flow rate of 100 mL/min. β-(NH4)2Mo4O13 was prepared continuously by adding aqueous ammonia and product slurry for crystallization in the concentric structure reactor.
Funding source: The National Natural Science Foundation of China
Award Identifier / Grant number: No.52174340
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was jointly supported by the National Natural Science Foundation of China (No.52174340) and the Changsha Outstanding Youth Program (kq2106011).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
Alkhaddar, R. M., P. R. Higgins, D. A. Phipps, and R. Y. G. Andoh. 2001. “Residence Time Distribution of a Model Hydrodynamic Vortex Separator.” Urban Water 3: 17–24, https://doi.org/10.1016/s1462-0758(01)00015-2.Search in Google Scholar
Aracena, A., A. Sanino, and O. Jerez. 2018. “Dissolution Kinetics of Molybdite in KOH Media at Different Temperatures.” Transactions of Nonferrous Metals Society of China 28: 177–85, https://doi.org/10.1016/s1003-6326(18)64651-5.Search in Google Scholar
Bensonici, M., A. Bellaouar, and K. Talbi. 2009. “Numerical Investigation of the Fluid Flow in Continuous Casting Tundish Using Analysis of RTD Curves.” Journal of Iron and Steel Research 16: 22–9, https://doi.org/10.1016/s1006-706x(09)60022-4.Search in Google Scholar
Cao, H. Z., C. J. Tong, H. B. Zhang, and G. Q. Zheng. 2019. “Mechanism of MoO2 Electrodeposition from Ammonium Molybdate Solution.” Transactions of Nonferrous Metals Society of China 29: 1744–52, https://doi.org/10.1016/s1003-6326(19)65082-x.Search in Google Scholar
Cao, Z., H. Zhong, Z. Qiu, G. Liu, and W. Zhang. 2009. “A Novel Technology for Molybdenum Extraction from Molybdenite Concentrate.” Hydrometallurgy 99: 2–6, https://doi.org/10.1016/j.hydromet.2009.05.001.Search in Google Scholar
Gao, L. X. and L. N. Deng. 2018. “An Automatic Acid Settling Control Device for Preparing Ammonium Molybdate.” Chinese Patent: No. ZL201821793289.7.Search in Google Scholar
Gu, S. Y., M. L. Qin, H. Zhang, J. D. Ma, and X. H. Qu. 2018. “Preparation of Mo Nanopowders through Hydrogen Reduction of a Combustion Synthesized Foam-like MoO2 Precursor.” International Journal of Refractory Metals and Hard Materials 76: 90–6, https://doi.org/10.1016/j.ijrmhm.2018.05.015.Search in Google Scholar
Hakobyan, K. Y., H. Y. Sohn, A. V. Tarasov, P. A. Kovgan, A. K. Hakobyan, V. A. Briovkvine, V. G. Leontiev, and O. I. Tsybine. 2006. “New Technology for the Treatment of Molybdenum Sulfide Concentrates.” In TMS Fall Extraction and Processing Division: Sohn International Symposium, Vol. 4, 203–16.Search in Google Scholar
Knyaz, O. V., G. G. Kuznetsova, V. F. Travkin, G. M. Voldman, and Y. M. Glubokov. 2010. “Extraction of Molybdenum with Bis (2, 4, 4-trimethylpentyl) Phosphine Acid (Cyanex-272).” Russian Journal of Non-Ferrous Metals 51 (6): 451–6, https://doi.org/10.3103/s1067821210060040.Search in Google Scholar
Lasheen, T. A., M. E. El-Ahmady, H. B. Hassib, and A. S. Helal. 2015. “Molybdenum Metallurgy Review: Hydrometallurgical Routes to Recovery of Molybdenum from Ores and Mineral Raw Materials.” Mineral Processing and Extractive Metallurgy Review 36 (3): 145–73, https://doi.org/10.1080/08827508.2013.868347.Search in Google Scholar
Li, J. T., G. X. Cao, Z. Y. Tang, and Z. W. Zhao. 2021. “Simulation of Flow Field Characteristics in Scheelite Leaching Tank with H2SO4–H3PO4.” International Journal of Chemical Reactor Engineering 19 (12): 1305–15, https://doi.org/10.1515/ijcre-2021-0161.Search in Google Scholar
Li, W. C., J. W. Li, G. Q. Xie, X. F. Zhang, and H. Liu. 2022. “Critical Minerals in China: Current Status, Research Focus and Resource Strategic Analysis.” Earth Science Frontiers 29 (1): 1–13.Search in Google Scholar
López, P. R., A. G. Lavín, M. M. M. López, and J. Heras. 2008. “Flow Models for Rectangular Sedimentation Tanks.” Chemical Engineering and Processing 47: 1705–9, https://doi.org/10.1016/j.cep.2007.09.020.Search in Google Scholar
Maksimovskaya, R. I., and N. N. Chumachenko. 1987. “51V and 17O NMR Studies of the Mixed Metal Polyanions in Aqueous V-Mo Solutions.” Polyhedron 6: 1813–21, https://doi.org/10.1016/s0277-5387(00)81089-x.Search in Google Scholar
Maksimovskaya, R. I., and G. M. Maksimov. 2007. “95Mo and 17O NMR Studies of Aqueous Molybdate Solutions.” Inorganic chemistry 46: 3688–95, https://doi.org/10.1021/ic061549n.Search in Google Scholar PubMed
State Council of China. 2016. The 13th Five-Year Plan for the Development of National Strategic Emerging Industries. Also available at http://www.china.com.cn/lianghui/news/2016-03/17/content_38053101_2.htm.Search in Google Scholar
Sun, Y. J., H. Xie, and J. Sun. 2008. “Influence of Ammonium Molybdate Precursor on Mo Powder Preparation and Working Properties.” Materials Science and Engineering A 483: 168–71, https://doi.org/10.1016/j.msea.2007.01.168.Search in Google Scholar
Wang, M. Y., C. J. Jiang, X. W. Wang, P. F. Xian, H. G. Wang, and Y. G. Yang. 2015. “Existing Form of Mo (VI) in Acidic Sulfate Solution.” Rare Metals 34: 1–5, https://doi.org/10.1007/s12598-015-0548-8.Search in Google Scholar
Wu, Z. P., Z. L. Yin, Q. Y. Chen, P. M. Zhang, and J. Li. 2002. “Mechanism of Ultrasonic Effect on the Crystallazition of Ammonium Molybdate in Aqueous Solution.” The Chinese Journal of Process Engineering 2 (1): 26–31.Search in Google Scholar
Wu, Z. P., Z. L. Yin, Q. Y. Chen, and P. M. Zhang. 2001. “The Preparation of β- Ammonium Tetramolybdate and the Crystallization Process.” Journal of Central South University of Technology 32 (2): 135–8, https://doi.org/10.1007/s11771-001-0041-4.Search in Google Scholar
Xiong, S. Y., and X. Y. Chen. 2021. “Numerical Simulation of Three-Dimensional Passive Micromixer Based on the Principle of Koch Fractal.” International Journal of Chemical Reactor Engineering 19 (5): 465–72, https://doi.org/10.1515/ijcre-2021-0020.Search in Google Scholar
Xu, S., W. Zhou, M. H. E. Leng, Z. Y. Li, and J. Liu. 2011. “A Production Method and Production System for β- Ammonium Tetramolybdate.” Chinese Patent: No. ZL201110360531.8.Search in Google Scholar
Xu, Z. C., and P. Zhang. 2019. “Synthesis Technology of Series Ammonium Molybdate.” China Molybdenum Industry 43 (2): 31–6.Search in Google Scholar
Yi, J., W. An, S. H. Luo, and J. R. Liu. 2018. “An Automatic Measurement System for Specific Gravity of Ammonium Molybdate.” Chinese Patent: No. ZL201820292451.0.Search in Google Scholar
Zhang, G. Q., Q. Wang, W. J. Guan, L. Zeng, Q. G. Li, Z. Y. Cao, L. S. Xiao, and Q. Zhou. 2019a. “Batch Preparation of Ammonium Isopolymolybdate Solution from Ammonium Molybdate Solutions Using Bipolar Membrane Electrodialysis.” Separation and Purification Technology 209: 676–83, https://doi.org/10.1016/j.seppur.2018.09.015.Search in Google Scholar
Zhang, M. P., C. H. Liu, X. J. Zhu, H. B. Xiong, L. B. Zhang, J. Y. Gao, and M. H. Liu. 2021a. “Preparation of Ammonium Molybdate by Oxidation Roasting of Molybdenum Concentrate: A Comparison of Microwave Roasting and Conventional Roasting.” Chemical Engineering and Processing: Process Intensification 167: 10855. https://doi.org/10.1016/j.cep.2021.108550.Search in Google Scholar
Zhang, N., E. Königsberger, S. Q. Duan, K. Lin, H. B. Yi, D. W. Zeng, Z. W. Zhao, and G. Hefter. 2019b. “Nature of Monomeric Molybdenum(VI) Cations in Acid Solutions Using Theoretical Calculations and Raman Spectroscopy.” Journal of Physical Chemistry B 123: 3304–11, https://doi.org/10.1021/acs.jpcb.9b00926.Search in Google Scholar PubMed
Zhang, N., S. He, Y. Li, Q. Zhou, D. W. Zeng, Z. W. Zhao, J. Yan, J. Zeng, and G. Hefter. 2021b. “Spectroscopic Study of the Behavior of Mo(VI) and W(VI) Polyanions in Sulfuric-Phosphoric Acid Mixtures.” Inorganic chemistry 60: 17565–78, https://doi.org/10.1021/acs.inorgchem.1c02133.Search in Google Scholar PubMed
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Articles in the same Issue
- Frontmatter
- Articles
- Design and parametric optimization of a fan-notched baffle structure mixer for enhancement of liquid-liquid two-phase chemical process
- Quantification of motion characteristics of vertically ascending bubbles in NaCl solution via image processing
- Particle crystallization by supercritical antisolvent processing techniques: the case of Retama raetam powder for pharmaceutical purposes
- Evaluation the performance of the tin (IV) oxide (SnO2) in the removal of sulfur compounds via oxidative-extractive desulfurization process for production an eco-friendly fuel
- Experimental and kinetic studies of biogas production from petroleum oily sludge by anaerobic co-digestion with animals’ dung at thermophilic conditions
- A study on the adsorption property and mechanism of β-cyclodextrin/polyvinyl alcohol/polyacrylic acid hydrogel for ciprofloxacin
- Evaluation of promoted Ni-based nanocatalysts in wall-coated microchannel reactor on the dry reforming of methane and effect of ultrasound waves on physiochemical properties of synthesized nanocatalysts
- Reaction engineering of continuous crystallization of β-ammonium tetramolybdate in concentric structure reactor and its application
- Bio-lubricant production based on epoxidized oleic acid derived dated palm oil using in situ peracid mechanism
