In the optimized conditions, a >77.0% yield of antimony ingot can be obtained under roasting temperature of 730 °C, roasting time of 60min, carbon powder …

RESEARCH ARTICLE. Preparation of Antimony Metal by Carbothermal Reduction of Antimony Oxide Powder in a Microwave Field: Mechanism and Process. Lingbo Li1,2 · …

Selective alkaline leaching of antimony from Low-grade refractory gold ores and process optimization. 2023, Minerals Engineering. ... Furthermore, the response surface method was applied to distinguish the interaction influence of process parameters on the antimony and gold extraction rate. It is detected that the polysulfides and …

Wu (Wu et al., 2019) and Rusalev (Rusalev et al., 2020) studied the effect of different factors on antimony in the sodium sulfide leaching process for treating high-grade antimony gold ore by ...

Coprecipitation-adsorption plays a significant role during coagulation-flocculation-sedimentation (C/F/S) of antimony (Sb) in water. This work uses a Box–Behnken statistical experiment design (BBD) and response surface methodology (RSM) to

Coprecipitation-adsorption plays a significant role during coagulation-flocculation-sedimentation (C/F/S) of antimony (Sb) in water. This work uses a Box–Behnken statistical experiment design (BBD) and response surface methodology (RSM) to investigate the effects of major operating variables such as initial Sb(III, V) …

The purity of electrolytic antimony was 99.4% and gold and silver were enriched 8–9 times in the anode slime, therefore providing an effective separation of precious metals from antimony by ...

Critical pores features are observed on Sb 2 Te 3 bulks and vary with different fabrication processes. Thermoelectric performances are investigated on samples with different porosities. The pores of Sb 2 Te 3 bulk have significant effects on controlling carrier transport and phonons scattering. A mild compaction process is beneficial to phonons ...

Antimony (Sb) is a troublesome impurity in the tin (Sn) smelting process. Generally, the Sb content in a Sn concentrate is 0.01–0.5%, and approximately 95% Sb is mixed with crude Sn after reduction and smelting [1,2]. ... Process optimization for vacuum distillation of Sn–Sb alloy by response surface methodology. Vacuum (2014) L.X. Kong …

The main challenge in the antimony flotation process is the difficulty in balancing the relationship between the antimony recovery rate and concentrate grade (Segura-Salazar and Brito-Parada, 2021). ... Control and Optimization of Flotation Process. 2023, Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology.

The present research is aimed at (i) purifying impure complex copper sulphide concentrates by selectively dissolving the impurities, and consequently, upgrading the concentrates for …

The optimization process was also performed using the goal function approach, and maximum copper recovery of 92.75% was obtained using ~70 g/t collector, 110 g/t depressant, 7 g/t frother, pulp pH ...

Download Citation | On Oct 1, 2023, Feiyu Zhang and others published Selective alkaline leaching of antimony from Low-grade refractory gold ores and process optimization | Find, read and cite all ...

An example of the optimization process is shown in Fig. 4 (a). Here we start with a planar 2D device structure with a period Λ, consisting of air (semi-infinite), 1.5 μm c-Si, 0.5 μm SiO 2 and a perfect reflector on the backside. The c-Si layer is assumed to be weakly absorptive, with a constant absorption coefficient.

Process optimization is a set of methods and tools used to make processes more efficient and effective. There are several types of process optimization techniques, including process mapping, process mining, and Six Sigma. When optimizing a process, it's important to identify goals, analyze current processes, develop an optimized process, …

On the basis of optimization studies [13][14] [15], the maximum extraction of antimony in the solution was determined and the gold losses during sulfide-alkaline leaching were minimized: L/S = 4.5 ...

High-quality films of bismuth antimony telluride were synthesized by electrodeposition from nitric acid electroplating baths. The influence of a surfactant, sodium ligninsulfonate, on the structure, morphology, stoichiometry, and homogeneity of the deposited films has been investigated. ... Optimization of the electrodeposition process …

antimony removal. However, the interactive effects of influencing factors on antimony removal were not in-vestigated and the optimization of EC process is still needed a subject of further investigation. Of late, Response Surface Methodology (RSM), a collection of mathematical and statistical methodology, has been

Herein, antimony (Sb) doping, and modification is proposed to boost the performance enhancement of short-process regenerated NCM in our work. Spent NCM …

The present study investigates the optimization and advanced simulation of the flotation process of coarse particles (–425 + 106) using micro-nanobubbles (MNBs). For this purpose, flotation ...

The unique 1D crystal structure of Antimony Triselenide (Sb 2 Se 3) offers notable potential for use in flexible, lightweight devices due to its excellent bending characteristics.However, fabricating high-efficiency flexible Sb 2 Se 3 solar cells is challenging, primarily due to the suboptimal contact interface between the embedded Sb …

In this work, a clean microwave carbothermal reduction of Sb2O3 mineral to prepare metallic antimony ingot is proposed. Response surface methodology was used to optimize condition for microwave ...

Preparation of Antimony Sulfide and Enrichment of Gold by Sulfuration–Volatilization from Electrodeposited Antimony. Electrodeposited antimony can be treated with sulfuration–volatilization technology, which causes antimony to volatilize in the form of antimony sulfide. During this process, gold is enriched in the….

Accordingly, the optimized process results are determined as follows: the extraction rates of antimony and gold reach 94.15% and 3.37%, respectively, under Na 2 S concentration of 85.66 g/L, NaOH concentration of 45.5 g/L, liquid–solid ratio of 1.5, leaching at 90 °C for 5 min, which are very consistent with the predicted values of the ...

China leads the global antimony production (67% on an average from 2015 to 2019) followed by Russia and Tajikistan. Antimony has been applied in the industry (plastics, etc.) and new/emerging technologies (cell panels, infrared, etc.) where antimony trioxide (Sb 2 O 3) is its most produced and used compound. With technological …

The co-contamination of aquatic systems with antimony (Sb) and humic acid (HA) is a global concern due to their potential risks to human health and environment. In this research, three-level-three-variable Box–Behnken design (BBD) was investigated for simultaneous Sb(III) and total organic carbon (TOC) removal responses from …

The mechanism of microwave carbothermal reduction of Sb2O3 was investigated by XRD, SEM-EDS and Mapping analysis, the results show that the microwave reduction process is divided into three stages based on the melting point of antimony, namely, 25 °C–400 °C, 400 °C–630 °C, and above 630 °C, which differ in terms of phase transformation.

The fate of antimony (III) in the CF–UF process was determined from the antimony (III) mass distribution and composition of HFO-antimony (III) cake layers that formed on the membrane. The results of this study allowed the optimization of the CF–UF process parameters for antimony (III) removal and provide a better understanding of …

Finally, antimony was recovered from the leach liquor in the form of NaSb(OH) 6. This study can pave the way for the development of new hydrometallurgical processes for antimony recovery from the sulfide minerals. ... Process optimization and kinetic studies. Journal of Environmental Management (IF 8.7) Pub Date: , DOI: 10.1016/j ...

The modelling and optimization for the alkaline sulphide leaching of a complex copper concentrate containing 1.69% Sb and 0.14% Sn were studied. …