The settling behavior of matte particles in copper slag and the new technology of copper slag cleaning

Zhang, Haipei; Li, Bo; Wei, Yonggang; Wang, Hua

doi:10.1016/j.jmrt.2021.11.061

Cited by 18 publications

(3 citation statements)

References 19 publications

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“…The mass ratio of Fe/SiO2 of copper smelting slag is usually between 1.5 ~ 2.0 [32]. In the experimental process, FeO-SiO2 synthetic slag is prepared by pure compound, and then synthetic copper slag with different sulfur content is prepared by adding Cu2S, FeS, and SiO2.…”

Section: Preparation Of Synthetic Slagmentioning

confidence: 99%

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Wei¹,

Wang²,

Dong³

2022

Preprint

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This work discussed the advantages of reducing copper in molten copper slag with low S content. FactSage calculated the distribution of copper at equilibrium under different sulfur content. The effect of sulfur content on copper recovery under different oxygen partial pressures was pointed out. The effect of sulfur content on copper recovery in the actual reduction process was explored through experimental research. Under the condition of low sulfur, the Recovery of copper and the stability of the experiment have an ideal results.

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Section: Preparation Of Synthetic Slagmentioning

confidence: 99%

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Wei¹,

Wang²,

Dong³

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The mass ratio of Fe/SiO 2 of copper smelting slag is usually between 1.5~2.0 [33]. In the experimental process, FeO-SiO 2 synthetic slag is prepared by pure compound, and then synthetic copper slag with different sulfur content is prepared by adding Cu 2 S, FeS, and SiO 2 .…”

Section: Preparation Of Synthetic Slagmentioning

confidence: 99%

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Wei¹,

Wang

Dong

2022

Metals

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This work discussed the advantages of reducing copper in molten copper slag with low S content. FactSage calculated the distribution of copper at equilibrium under different sulfur contents. The effect of sulfur content on copper recovery under different oxygen partial pressures in 1400 °C was pointed out. The effect of sulfur content on copper recovery in the actual reduction process was explored through experimental research. Under the condition of low sulfur, the recovery ratio of copper and the stability of the experiment have an ideal result in fixed C/O in the experiment.

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“…Fly ash is commonly used as volcanic ash to produce hydraulic cement or hydraulic mortar, which can partially replace cement in concrete [18,19]. Granulated blast furnace slag is an industrial solid slag obtained by water quenching and granulation of molten material with calcium silicate as the main component when smelting pig iron in the blast furnace, which is mostly glassy and potentially water-hard cementitious activity [20,21]. Slag powder is a kind of high-quality admixture used to prepare concrete, which is a powder that conforms to the standard granulated blast furnace slag after being dried and ground to a considerable fineness and meeting the activity index [22,23].…”

Section: Introductionmentioning

confidence: 99%

Fly Ash and Slag as Partial Replacement of Cement for the Synthesis of Low Carbon Cementitious Materials

Hu¹,

Li²,

Zheng³

et al. 2023

Journal of Renewable Materials

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Tailings known as solid waste are generated by the mining industry. The development of tailings as wet shotcrete aggregates has significant economic and environmental benefits. The fine particle size of the tailings results in a large consumption of traditional cement as a cementitious material and insignificant improvement in strength. Therefore, a composite cementitious system of cement and solid waste resources (fly ash and slag powder) is explored for this study. In this paper, the response surface methodology (RSM) is used to optimize the experimental design and a multivariate nonlinear response model with cement, fly ash and slag powder contents as variables are constructed, which can investigate the effect of the composite cementitious system on the strength of tailing wet shotcrete (TWSC). In addition, the information entropy (IE) is introduced and combined with the RSM to evaluate the composite cementitious system. Finally, the desirability function (DF) combined with RSM is used to optimize the composite cementitious system. The results show that the response model constructed in this paper has R 2 = 0.96 and P-value < 0.01 (the test result of the model is P-value < 0.01), which indicates that the model has high reliability. The higher the content of slag powder and cement in the composite cementitious system, the higher the strength and comprehensive score of the TWSC. There is a critical value of fly ash content, which makes the maximum cementation of the composite cementing system. The optimal mix proportion of the composite cementitious system is obtained based on RSM-DF, which leads to the strength of TWSC at different curing time to achieve the expected index.

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The settling behavior of matte particles in copper slag and the new technology of copper slag cleaning

Cited by 18 publications

References 19 publications

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Effect of Sulfur Content on Copper Recovery in the Reduction Smelting Process

Fly Ash and Slag as Partial Replacement of Cement for the Synthesis of Low Carbon Cementitious Materials

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