Thermodynamics Analysis and Industrial Trials of Bottom-Blowing Smelting for Processing Lead Sulfate-Containing Materials

Li, Weifeng; Li-hua, Jiang; Zhan, Jing; Zhang, Chuanfu; Gui, Li; Hwang, Jian-yang

doi:10.1007/978-3-319-48217-0_64

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“…The main raw materials input included carbide slag, lead glass, lead concentrate, lead mud, zinc leaching slag, return dust, coal, air, and industrial oxygen (oxygen volume concentration of 95%). Based on the elements analysis data of raw material in the factory and the composition of common industrial raw materials [23][24][25], models for each raw material were constructed using the MetCal v7.81 to calculate their composition, as shown in Tables 3-9.…”

Section: Raw Materials and Their Compositionsmentioning

confidence: 99%

Multi-Phase Equilibrium Model of Oxygen-Enriched Lead Oxidation Smelting Process Based on Chemical Equilibrium Constant Method

Chen,

Li,

Liu

et al. 2023

Processes

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With the increasingly complicated sources of lead smelting materials, it is becoming more difficult to optimize process parameters during the bottom-blowing lead oxidation smelting process. Building a bottom-blowing lead smelting thermodynamic model has significant importance for the green production of the lead smelting process. In this study, we built a multi-phase equilibrium thermodynamic model and simulation system for the oxygen-enriched bottom-blowing lead oxidation smelting process using the MetCal software platform (MetCal v7.81) according to the chemical equilibrium constant method. The equilibrium products composition and important technical indicators were calculated under factory operating conditions. Compared with the industrial data, the calculation results demonstrated that the average relative error of the calculation value of the mass fraction in the crude lead, lead-rich slag, and dust was 3.76%. The average relative error of important technical indicators, including dust rate, crude lead yield, lead-rich slag temperature, slag iron–silica ratio (RFe/SiO2), and slag calcium–silica ratio (RCaO/SiO2), was 6.39%. As a result, the developed modeling and simulation system was able to reflect the current state of the oxygen-enriched bottom-blowing lead smelting. It also demonstrated the potential to enhance the smelting process and optimize the process parameters. Therefore, it is expected to provide a useful tool for thermodynamic analysis.

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Section: Raw Materials and Their Compositionsmentioning

confidence: 99%