1. Introduction. Antimony (Sb), as a precious resource of heavy metals, has been widely applied in various industrial applications, such as flame retardants, glassware additives, pigments, lead-acid battery, lead alloys, catalyst, and semiconductors [[1], [2], [3]].However, the source of Sb on earth is quite limited [1, 4].Despite the lack of Sb …
DetailsResearch has already been conducted on the use of aluminium to remove antimony and copper from lead from scrap lead–acid batteries in terms of lead pre-refining. To remove antimony, arsenic, and tin more thoroughly, an additional refining process using the anodic polarisation of lead in molten sodium hydroxide has been …
DetailsA strategy for the efficient recovery of highly pure copper and antimony metals from electronic waste (e-waste) was implemented by the combination of hydrometallurgical …
DetailsAntimony recovery from stibnite – extractive metallurgical strategies. Antimony has been recovered from its ores or concentrates by pyrometallurgical and hydrometallurgical treatment techniques. Beside these two processes, bio-hydrometallurgical process has been attempted in order to compete or replace the …
DetailsThis paper gives a critical overview of the existing attempts to recover antimony from secondary sources. The paper also discusses the possibility of waste valorization …
DetailsPrecipitation is a useful technique for the recovery of elements from solution. Precipitating antimony as a sulfide provides a practical route to lower the antimony concentration in antimony-containing solutions. An attempt was made to selectively recover antimony from the elute containing antimony together with a high …
DetailsFor more complex ores, intricate reagent schemes are employed to recover antimony and precious metals into the concentrate or if it is a contaminant, its rejection is accomplished by the use of depressants (e.g. K 2 Cr 2 O 7) at high pH (alkaline conditions, pH > 10, are detrimental to antimony mineral flotation). 3.3. Pyrometallurgy
DetailsThe saturated vapour pressure of antimony and its sulphide and oxide at different temperatures are shown in Fig. 2.As can be seen from Fig. 2, as the temperature increases, the saturated vapour pressure of Sb 2 S 3, Sb 2 O 3 and Sb increases gradually, and the growth trend of Sb 2 S 3 is the most rapid. When the temperature is below 1201 …
DetailsSilver Recovery from Scrap and Low-Grade Residue. ... First the antimony, arsenic, and zinc are oxidized and removed, followed by lead, with bismuth, copper and tellurium being the last to be oxidized …
DetailsPrinted Circuit Boards (PCBs) are an essential component of electronic devices. The digitalization and upgrading of gadget generates lots of PCB-containing electronic waste. Conserving resources and protecting the environment requires the recycling of such e-waste. This paper focuses on the recovery of metals from waste …
DetailsA process for the successful recovery of copper from e-waste by using both hydrometallurgical and electrochemical techniques was developed. A simple …
DetailsFor the purpose of efficient and selective antimony recovery with minimal economic cost and environmental impact, researchers proposed various innovative pyrometallurgical, hydrometallurgical, and electrochemical processes. This paper reviews the state-of-the-art technologies for the antimony separation and recovery from …
DetailsUse a magnet to separate gold-plated steel parts, as steel requires a different recovery process. Chemical Processing for Gold Recovery. Soak circuit boards and components in a mixture of 2:1 hydrochloric acid and 3% hydrogen peroxide to dissolve metals and separate gold. Stir daily for a week.
DetailsThe Washington-based American Chemistry Council's (ACC) North American Flame Retardant Alliance (NAFRA) is collaborating with Charles Darwin University (CDU) in Darwin, Australia, and the United Arab Emirates University (UAEU) in Al Ain to develop new processes to recover and recycle bromine and antimony from flame-retarded …
DetailsThe recovery of precious metals from waste printed circuit boards (PCBs) is an effective recycling process. This paper presents a promising hydrometallurgical process to recover precious metals ...
DetailsFor the purpose of efficient and selective antimony recovery with minimal economic cost and environmental impact, researchers proposed various innovative pyrometallurgical, …
DetailsThus, anodes made from scrap battery grid metal containing several percent antimony should be particularly suited to electrorefining. The problem heretofore has been how to recover the lead from the battery sludge, which consists of roughly 60 pct PbSO4, 21 pct Pb, and 19 pct PbO2.
DetailsCounting direct-melted copper scrap, the figure is considerably higher; for example, in 2009 more than 45% of copper used in Europe came from recycled material and the global recycling rate was 34% (European Copper Institute, 2013). Recovery of copper from end uses varies greatly from product to product.
DetailsIn view of the greater application value of antimony than arsenic, it is of great significance to selectively separate arsenic and antimony to recover valuable metals. In this paper, an environmental friendly method is presented to selectively extract arsenic and antimony from gold-bearing sludge obtained from chlorination–volatilization ...
DetailsLeaching selectivity during metal recovery from complex electronic waste using a hydrochemical process is always one of the generic issues. It was recently improved by using ammonia-based leaching process, specifically for electronic waste enriched with copper. This research proposes electrodeposition as the subsequent …
DetailsDOI: 10.1016/j.jenvman.2024.120049 Corpus ID: 267022965; Study on the behavior of clusters in the physical recovery of GaAs scrap. @article{Yu2024StudyOT, title={Study on the behavior of clusters in the physical recovery of GaAs scrap.}, author={Hao-Ran Yu and Xiumin Chen and Bao-qiang Xu and Bin Yang and Wenlong Jiang and Yang Tian and …
DetailsRecovery of gold from electronic scrap and other industrial wastes is increasingly practiced. New hydrometallurgical processes have also been developed to recover gold directly from ores or concentrates of copper, nickel, lead, or cobalt; these are also briefly described.
DetailsRecovery of metallic tin from scrap generated in lead-free wave solder was studied. ... (H 2 O) 9 crystal via evaporation-crystallization; for this process, the recovery of antimony reached 93.83% at 50% evaporation rate, and the crystallization rate of antimony was 95%.
DetailsAlready, antimony recycling supplies account for ∼14% of domestic consumption, which is mostly recovered from lead–acid batteries or antimonial lead. 14 The recycling of lead–acid battery scrap or other antimonial lead scrap through smelting/reduction followed by refining can produce pure lead, lead-antimony alloys, and a low-quality Pb ...
DetailsMetalcess provides lead smelting and refining process and related equipment,as well as solution to recover lead refining dross in a comprehensive way. ... tellurium, arsenic, tin and antimony can be removed from the lead bullion with molten sodium hydroxide, sodium nitrate being used as an oxidizing agent, and transferred into the alkaline salt ...
DetailsMembrane electrowinning has been used to recover antimony from Sb tri-chloride solutions. Herein, the solution obtained after leaching was filtered, purified and then …
DetailsThis recovery process was designed such that to consume the waste products of the main process with the materials that are produced in a copper refinery plant such as copper chips and electrolyte solution. ... However, common components of the slimes are copper, silver, gold, selenium, tellurium, arsenic, bismuth, antimony, lead, …
DetailsBioleaching using bacteria as a method of recovery of metals from e-waste, followed by biosorption to assist in the purification by binding of metal ions with the biomass and metabolites of the microorganisms, has been widely reported. The biological method of recovery of CMs and REEs offers a great advantage to a sustainable environment for ...
DetailsAt 25 °C, 40 mg of iron powder was found to reduce all antimony ions (i.e., approx. 99% recovery), but even when 100 mg of Al and Sn cementators were used, the antimony recovery did not reach .
DetailsUnder the conditions, more than 98% of antimony was extracted from tin anode slime, wherein the antimony was converted to liquid sodium thioantimonate, which was then converted into Na3SbS4(H2O)9 ...
DetailsDOI: 10.1021/acssuschemeng.4c00891 Corpus ID: 269705383; Antimony Extraction from Sulfide Concentrates by Direct Electrolytic Desulfurization in Molten Salt @article{Zhu2024AntimonyEF, title={Antimony Extraction from Sulfide Concentrates by Direct Electrolytic Desulfurization in Molten Salt}, author={Qiang Zhu and Jianguang …
DetailsQ1 Flow STUdIeS For reCyClING MeTAl CoMModITIeS IN The UNITed STATeS antimony recycling in the United states in 2000 by James F. Carlin, Jr. of 3 to 3.5 on the Mohs scale (about 55 on the brinell scale).
DetailsChina now leads the world in antimony production, having contributed during recent years something over 60 per cent, of the world's production. ... Sb for ore and about 4.5 per cent, for residue. The average recovery per shaft furnace per 24 hr. from ore of about 25 per cent. Sb, with a total charge of 4480 lb. (2030 kg.), is shown in Table 2 ...
DetailsThis work investigates the thermal decomposition and carbothermal reduction of pure metal oxides (Sb 2 O 3, Bi 2 O 3, and ZnO) and MOV residue. Thermogravimetric (TG) …
Detailsarsenic, bismuth, antimony, lead, barium, and platinum-group metals (PGMs) [5 –8]. Tellurium is a rare metalloid that is majorly produced from copper anode slime [8]. Tellurium is categorized as a ... the recovery method is very much dependent on the charac-terization of the anode slime and therefore must be experi-mentally investigated and ...
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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