Extraction of tellurium and high purity bismuth from processing residue of zinc anode slime by sulfation roasting-leaching-electrodeposition process

Fan, Jinlong; Wang, Gang; Yang, Haowei; Xu, Shuo; Zhang, Jie; Chen, Jinwei

doi:10.1016/j.hydromet.2020.105348

Cited by 29 publications

(6 citation statements)

References 56 publications

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“…Upon obtaining a tellurium leaching solution, we added a suitable quantity of HCl to initiate tellurium recovery. The primary reactions during this process are shown in Table . , …”

Section: Resultsmentioning

confidence: 99%

“…The primary reactions during this process are shown in Table 4. 26,30 Equations 41−44 lead to the following conclusions Ultimately, the total concentration of all Te 4+ -hydrolyzed species in the solution can be calculated as follows (53) Figure 11 presents the results, indicating that tellurium can be fully hydrolyzed in the pH range of 4−6. Subsequently, HCl was added to the acquired tellurium-containing solution, and the pH was adjusted to 5, yielding a recovery of over 99% of tellurium by precipitation.…”

Section: Effect Of Naclo 3 Dosagementioning

confidence: 99%

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Efficient Separation and Purification Method for Recovering Valuable Elements from Bismuth Telluride Refrigeration Chip Waste

Zhu,

Wang,

Zhu

et al. 2023

ACS Omega

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Bismuth telluride and its alloys are widely utilized in thermoelectric refrigeration and power generation devices. Waste bismuth telluride-based cooling chips contain valuable elements; however, recycling processes for these materials remain underdeveloped due to their complexity. In this study, we developed a concise and efficient chemical method that does not require expensive reagents or equipment, enabling the separation and purification of tellurium, bismuth, selenium, and antimony from waste bismuth telluride-based cooling chips. Initially, the waste was leached with HCl and NaClO 3 to dissolve primary elements and recover 99.9% of selenium using hydroxylamine hydrochloride. Subsequently, Na 2 S and NaOH were employed for precipitation and leaching, resulting in a solution containing tellurium. The precipitated residue was treated with HNO 3 to oxidize antimony into insoluble SbOHN and dissolve bismuth completely. 99.8% of the bismuth telluride waste was dissolved via oxidative leaching through hydrolysis. A small amount of sodium sulfide reduced the precipitation percentage of tellurium from 11.9% to 7.5% in an alkaline solution, and the direct recovery percentage of tellurium in the form of TeO 2 exceeded 90%, while the purity of TeO 2 reached 99.9%. By adjusting the pH of the bismuth solution to 0.15, 98.9% of the bismuth was able to precipitate and be recovered as BiOCl, with the purity also reaching 99.9%. In summary, this study presents an efficient hydrometallurgical method for treating bismuth telluride waste and provides theoretical guidance for reagent dosage, demonstrating the significant potential for industrial applications.

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“…Upon obtaining a tellurium leaching solution, we added a suitable quantity of HCl to initiate tellurium recovery. The primary reactions during this process are shown in Table . , …”

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Naclo 3 Dosagementioning

confidence: 99%

Efficient Separation and Purification Method for Recovering Valuable Elements from Bismuth Telluride Refrigeration Chip Waste

Zhu,

Wang,

Zhu

et al. 2023

ACS Omega

Self Cite

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“…Bismuth is considered as a “green” strategic metal, a potential alternative for environmentally harmful metals, and has a broad application market in the chemical, pharmaceutical, and catalyst industries. − Bismuth is difficult to form independent deposits in nature, mostly symbiosis with lead, tin, copper, tungsten, molybdenum and other metal minerals . During the smelting of lead, tin, copper, and other primary metals, bismuth is enriched in intermediates or byproducts such as lead electrolytic anode slime, zinc anode slime, and smelter dust, which are used as raw materials for further metallic bismuth recovery. It is well-known that Chinese bismuth resources are rich, accounting for approximately 75% of the global total reserves, especially represented by the Shizhuyuan molybdenum–bismuth–tungsten polymetallic minerals.…”

Section: Introductionmentioning

confidence: 99%

Green Extraction of Metallic Bismuth from Bismuth Sulfide Concentrate via Reductive Sulfur-Fixed Smelting

Jin,

Yang,

Tang

et al. 2024

ACS Sustainable Chem. Eng.

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A novel technology for clean and efficient extraction of metallic bismuth from bismuth sulfide concentrates is proposed: reductive sulfur-fixed smelting. The reaction mechanisms of metallic bismuth extraction and elemental sulfur immobilization are revealed by thermodynamic calculations and phase characterization. Under the reducing atmosphere, Bi 2 S 3 reacts with Fe 2 O 3 and Na 2 CO 3 to produce metallic Bi, and the element S is transferred and immobilized into the FeS and Na 2 S phases, thus effectively eliminating the generation of low-concentration sulfur-containing flue gas. Controlling the mass ratio of charge as

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“…Most bismuth minerals contain tungsten, molybdenum, lead, tin, copper, and other metallic minerals . Therefore, the main raw materials for bismuth extraction are the byproducts obtained from the lead, tin, copper, and other sulfide ores smelting process, such as copper smelting dust and crude lead electrolytic anode slime. − The typical mineral compositions of the Bi-W-Mo polymetallic sulfide ore in Shizhuyuan are bismuthinite (0.1–0.2 wt %), scheelite (0.3–0.5 wt %), molybdenite (<0.1 wt %), pyrite (0.5–1.2 wt %), quartz (10.7–20.0 wt %), garnet (17.5–30.0 wt %), magnetite (1.9–3.9 wt %), and calcite (6.6–9.9 wt %), and it can be treated by flotation to generate bismuthinite (Bi 29.3–32.1 wt %), molybdenum (Mo 41.8–44.6 wt %), and tungsten concentrate (WO 3 59.0–65.2 wt %) …”

Section: Introductionmentioning

confidence: 99%

Reaction Mechanism and Technical Application of Metallic Bismuth Extraction from Bismuthinite Concentrate by Low-Temperature Alkaline Smelting

Jin

Yang

Tang

et al. 2023

ACS Sustainable Chem. Eng.

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Traditional bismuthinite concentrate precipitation smelting has problems of low recovery of valuable metals (e.g., Bi, Cu, Mo, and Ag), high fuel consumption, and high cost of SO 2 flue gas treatment. Therefore, in this study, an eco-friendly alkaline smelting process was proposed to extract metallic bismuth and recover valuable metals. The phase equilibrium composition of the Bi 2 S 3 -Na 2 CO 3 -C system was revealed by thermodynamic simulations at different temperatures and reductant contents. Based on reaction product characterizations and thermodynamic simulations, the following reaction mechanism and suitable bismuth extraction path were confirmed: Bi 2 S 3 first reacted with Na 2 CO 3 to form Bi 2 O 3 and Na 2 S, and the intermediate (Bi 2 O 3 ) was then reduced to metallic Bi by both C and CO. Under optimized conditions (W bismuthinite /W Na2CO3 /W coke = 200:300:20, 900 °C, 150 min), up to 96.56% Bi, 75.07% Pb, and 85.11% Ag were enriched in crude bismuth, respectively, while 93.57% Cu, 70.23% Fe, 96.63% Mo, and 94.34% W entered the salt slag. More than 99.9% W and Mo were recovered as Na 2 WO 4 and Na 2 MoO 4 , respectively, from the salt slag by water leaching. In the leaching residue, chalcopyrite, pyrite, and elemental sulfur could be recovered by flotation.

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Extraction of tellurium and high purity bismuth from processing residue of zinc anode slime by sulfation roasting-leaching-electrodeposition process

Cited by 29 publications

References 56 publications

Efficient Separation and Purification Method for Recovering Valuable Elements from Bismuth Telluride Refrigeration Chip Waste

Efficient Separation and Purification Method for Recovering Valuable Elements from Bismuth Telluride Refrigeration Chip Waste

Green Extraction of Metallic Bismuth from Bismuth Sulfide Concentrate via Reductive Sulfur-Fixed Smelting

Reaction Mechanism and Technical Application of Metallic Bismuth Extraction from Bismuthinite Concentrate by Low-Temperature Alkaline Smelting

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