Thermodynamic Modeling of the Pb-S and Cu-Pb-S Systems with Focus on Lead Refining Conditions

Shishin, Denis; Jiang, Chen; Jak, Evgueni

doi:10.1007/s11669-020-00811-7

Cited by 16 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…References to subsequent fundamental research on thermodynamics and phase equilibria of lead-containing systems directly relevant to primary and secondary processing are provided in the present paper. They are grouped in the following categories: Smelting [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], Reduction [21][22][23][24][25][26][27][28][29], Refining [30][31][32][33][34][35][36][37][38][39][40][41][42][43] and Elemental Distributions [44][45][46][47].…”

Section: Fundamental Research Developmentsmentioning

confidence: 99%

“…Better predictive capacity and flexibility of MQM in multicomponent systems is achieved by using pair (or quadruplet) fractions for polynomial expansion of Gibbs energy change in quasichemical reactions [53], by using composition-dependent coordination numbers [53], by combining quasichemical and Bragg-Williams random mixing contribution to the excess Gibbs energy [54], by using different geometric extrapolation methods of binary model parameters into multicomponent space [54,55], and by using quadruplet formalism for ionic liquids with several possible cations and anions [56]. Recent examples of application of MQM for different cases are provided below: slags [57][58][59][60][61], mattes and metals [40][41][42]62], slags in equilibrium with mattes [63][64][65] and/or metals [66].…”

Section: Thermodynamic Models and Databasesmentioning

confidence: 99%

See 1 more Smart Citation

Recent University Research, Implementation and Education in Support of Pyrometallurgical Lead Processing

Jak,

Shevchenko,

Shishin

et al. 2024

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

The increasing chemical complexity of lead process streams encountered in industrial high temperature processing operations, as the result of declining primary resources, increased metal recycling and increased overall range of metals in modern devices has highlighted the urgent need for new predictive tools, fundamental phase equilibria and thermodynamic information and thermodynamic models to characterise the chemical behaviour of these systems. The paper examines recent progress in experimental and thermodynamic modelling research on process fundamentals, the availability of advanced, predictive computer-based tools and the implementation of the research outcomes into industrial practice. A wide range of chemical systems and phase assemblages have been studied. Some examples are taken from the current research program at PYROSEARCH, which involves the characterisation of multi-component, multi-phase gas-slag-matte-speiss-metal-solids systems with the PbO-ZnO-“Cu2O”-FeO-Fe2O3-CaO-Al2O3-MgO-SiO2-S as major and As-Sn-Sb-Bi-Ag-Au-Ni-Co-Cr-Na as minor elements with focus on systems directly relevant to lead primary and recycling pyrometallurgical processes. Examples of the application of advanced analytical techniques to fundamental and applied industrial research are also given. The implementation of new research outcomes into industrial practice depends critically on commitments by research staff as well as industry management and the availability of well-trained metallurgical engineers. We examine the current status of research implementation, university research, metallurgical engineering education and the availability of suitable educational pathways and initiatives that can be taken to increase undergraduate enrolments. Active engagement and support by industry is critical in ensuring the continuation of academic programs and advanced technical skills required by the industry.

show abstract

Section: Fundamental Research Developmentsmentioning

confidence: 99%

Section: Thermodynamic Models and Databasesmentioning

confidence: 99%

Recent University Research, Implementation and Education in Support of Pyrometallurgical Lead Processing

Jak,

Shevchenko,

Shishin

et al. 2024

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The available experimental results or thermodynamic assessments have been analyzed and used to establish model parameters. Examples of publications describing the optimization of model parameters are available for some systems: Pb-S [17], As-S [18], Cu-As [19], Pb-As [20]. A summary of binary systems important for the matte formation is given in Figure 2 and Figure 3.…”

Section: Phase Diagrams Of Key Binary Systemsmentioning

confidence: 99%

Development and application of matte/speiss/metal thermodynamic database for optimization of processing of drosses, dusts and reverts from lead, zinc and copper production

Shishin,

Shevchenko,

Starykh

et al. 2024

J. Phys.: Conf. Ser.

Self Cite

View full text Add to dashboard Cite

Detrimental elements such as arsenic and antimony tend to accumulate in dusts and drosses of lead-zinc as well as copper smelters. These by-products are commonly treated in dedicated reductive smelting units producing Cu-rich matte, As-Sb-collecting speiss and Pb-rich metal, as well as liquid slag. Such process would have a complex distribution of elements (Cu, Fe, Pb, Zn, Ni, Sn, Sb, As, Ag, Au, S, etc.) among four liquid phases. Thermodynamic calculations can be used for predictions and optimization of such processes. They must rely on accurate models developed in integration with experimental program. Present study reports results of recent progress in experimental and modelling studies of As, Sb-containing speiss systems and demonstration of calculations relevant for industrial conditions. Experimental methodology consisted of equilibration, quenching and electron probe X-ray microanalysis. Calculations were performed using FactSage software and thermodynamic database developed based on the dedicated recent experiments. The main findings of the paper are: a set of binary and ternary diagrams relevant to matte and speiss formation conditions; distribution of Ag and Au among liquid Pb and speiss in key quaternary systems; and distributions of 10 main elements for industrially relevant matte/speiss/metal multicomponent equilibria.

show abstract

“…This phenomenon is used practically in the refining of lead from copper in the liquation process. Crude lead, containing a few percent by mass of copper, is melted at about 500 °C, and then it is spontaneously slowly cooled down to a temperature of about 350 °C [ 21 ]. During cooling down, the so-called copper drosses, constituting the separated copper.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Non-Ferrous Metals from PCBs Scrap by Liquation from Lead

et al. 2022

View full text Add to dashboard Cite

This article presents the results of research on the recycling of non-ferrous metals from PCB scrap using melting in metallic lead. The idea of this process is to dissolve (transfer) metals from PBC scrap in lead, and then liquation them by cooling the lead-metals alloy. PBC scrap was crushed and then melted into liquid lead. The lead after process was then poured into the casting mold and its chemical composition was examined. Among the various metals in the PBC scrap, copper and tin in particular are dissolved in lead. The more scrap dissolved in lead, the higher the concentration of copper and tin in the alloy. The highest obtained concentration of copper in lead were about 2.2 wt.%, and for tin about 0.8 wt.%.

show abstract

Thermodynamic Modeling of the Pb-S and Cu-Pb-S Systems with Focus on Lead Refining Conditions

Cited by 16 publications

References 27 publications

Recent University Research, Implementation and Education in Support of Pyrometallurgical Lead Processing

Recent University Research, Implementation and Education in Support of Pyrometallurgical Lead Processing

Development and application of matte/speiss/metal thermodynamic database for optimization of processing of drosses, dusts and reverts from lead, zinc and copper production

Recovery of Non-Ferrous Metals from PCBs Scrap by Liquation from Lead

Contact Info

Product

Resources

About