Simulation and calculation of whole process for preparing ammonium paratungstate by alkali decomposition of tungsten ore

被引：0

作者：

Gong D. ^{[1
,2
]}

Zhang Y. ^{[3
]}

Zhou H. ^{[2
]}

Qian H. ^{[2
]}

Ma A. ^{[2
]}

Ren S. ^{[2
]}

Li M. ^{[4
]}

机构：

[1] Collaborative Innovation Center for Development, Utilization of Rare Metal Resources Co-sponsored by Ministry of Education and Jiangxi Province, Jiangxi University of Science and Technology, Ganzhou

[2] School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou

[3] Chongyi Zhangyuan Tungsten Industry Co. Ltd., Chongyi

[4] Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2024年 / 55卷 / 01期

关键词：

alkali decomposition; ion exchange; simulation calculation; tungsten smelting; whole process;

D O I：

10.11817/j.issn.1672-7207.2024.01.004

中图分类号：

学科分类号：

摘要：

Based on the principles of mass conservation, chemical balance, element distribution constraints and index constraints, the thermodynamic model of tungsten ore matching, grinding, alkali decomposition, dephosphorization, ion exchange, molybdenum removal and evaporative crystallization of the whole process of preparing ammonium paratungstate by alkali decomposition of tungsten ore was constructed. Then according to the migration and transfer relationship of materials in each process, a simulation calculation system for the whole process of preparing ammonium paratungstate through the alkali decomposition of tungsten ore was developed using the MetCal software. The reliability of the model calculation was also verified using actual production data under typical operating conditions. The results showed that the relative errors between calculated values and production data of WO3 and P mass fractions in the concentrated solution of alkali decomposition were −5.755% and −12.195%, respectively. The relative errors of WO3, P, Fe, Mn and Ca mass fractions in tungsten slag were −2.026%, −5.439%, −14.819%, −14.971% and 11.826%, respectively. The relative errors of the mass fractions of WO3 and P in the dephosphorization solution are 5.513% and −7.692%, respectively. While the relative errors of the mass fractions of WO3, P and Ca in the dephosphorization solution slag are −5.834%, 3.337% and 7.113%, respectively. The relative errors of the mass fractions of WO3 and Mo in the solution after molybdenum removal are −1.627% and −9.375%, respectively. The relative errors of the mass fractions of WO3, Mo, S and Cu in the molybdenum removal slag are 2.547%, −8.827%, 8.686% and 9.692%, respectively. © 2024 Central South University of Technology. All rights reserved.

引用

页码：43 / 54

页数：11

共 20 条

[1]

MA Zelong, ZHANG Lingchen, LI Jiangtao, Et al., Process of removing phosphorus and molybdenum from complex scheelite concentrates with high phosphorus and molybdenum, Nonferrous Metals Science and Engineering, 11, 5, (2020)

[2]

GONG Dandan, ZHANG Yong, WAN Linsheng, Et al., Efficient extraction of tungsten from scheelite with phosphate and fluoride[J], Process Safety and Environmental Protection, 159, pp. 708-715, (2022)

[3]

CHEN Ailiang, MAO Jiale, CAO Jiang, Et al., Simulation study on flow field characteristics of air flotation deoiling process, Journal of Central South University(Science and Technology), 54, 5, pp. 1680-1691, (2023)

[4]

LI Mingzhou, TONG Changren, HUANG Jindi, Et al., Simulated calculation of overall process flow of copper bottom blowing smelting, The Chinese Journal of Process Engineering, 16, 6, (2016)

[5]

ZHANG Ningning, ZHOU Changchun, YAN Xiaokang, Numerical study on feeding mode of fast floating embedded flotation column based on Fluent, Journal of Central South University(Science and Technology), 47, 1, (2016)

[6]

WANG Jinliang, ZHOU Rui, LIU Yuan, Et al., Simulation calculation of overall process of double bottom blowing continuous copper smelting process based on MetCal, Nonferrous Metals Science and Engineering, 12, 3, (2021)

[7]

LIU Dongfu, TANG Zhongyang, HE Lihua, Et al., Fluid hydraulics and numerical simulation on membrane electrolyzer for lithium extraction from salt lake brine, The Chinese Journal of Nonferrous Metals, 29, 2, (2019)

[8]

SHI Fengxia, ZHAO Jian, SUN Xiaoguang, Et al., Numerical simulation of surface cleaning flow field for gas-liquid two-phase jet, Journal of Central South University(Science and Technology), 52, 3, (2021)

[9]

ZHANG Hongliang, LIANG Jinding, XU Yujie, Et al., Simulation of strong coupling electromagnetic current in aluminum reduction cells and its application in new cathodes, Nonferrous Metals Science and Engineering, 8, 5, (2017)

[10]

LI Zuosheng, TANG Sai, LIANG Chaoping, Et al., Establishment and simulation in dynamic recovery process of tungsten using phase field model [J], The Chinese Journal of Nonferrous Metals, 31, 7, (2021)

← 1 2 →