Antimony recovery from the halophosphate fraction in lamp phosphor
Antimony is becoming an increasingly critical element as the supply-demand gap is expected to exceed 10% over the period 2015–2020. Antimony production is primarily concentrated in China (90%) and as the industrial demand for this metal surges, attention has to turn towards the recovery of antimony from (industrial) waste residues …
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Removal of Antimony and Bismuth from Copper Electrorefining
Antimony and bismuth are two of the most problematic impurities in copper electrorefining. As a result, much research has been done investigating the ways to remove them. Processes that are currently being used industrially include anode additions, liberators, ion exchange (IX), and solvent extraction (SX). Of these, liberators and anode …
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A hydrometallurgical process for the separation and recovery of antimony
The conventional electrowinning technology of antimony is a challenging problem due to the sulfur compounds that come from both the ore itself and the leaching solution in the electrolysis system.
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Bismuth Metallurgy | SpringerLink
In nature, there is a small amount of the simple substance of bismuth. The most common bismuth minerals include bismuthinite (Bi 2 S 3), bismutite (Bi 2 O 3 or bismite), copper bismuthinite (3Cu2S·4Bi2S3), plumbum bismuthinite (2PbS·Bi 2 S 3), and so on, among which Bi 2 S 3 and Bi2O3 are of the highest value. The bismuth minerals …
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A review of the technologies for antimony recovery from refractory …
DOI: 10.1080/08827508.2022.2132946 Corpus ID: 252894617; A review of the technologies for antimony recovery from refractory ores and metallurgical residues @article{Ling2022ARO, title={A review of the technologies for antimony recovery from refractory ores and metallurgical residues}, author={Hongbin Ling and Annelies Malfliet …
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Impurity Distribution During Electrolytic Refining of Antimony
An electrolytic refining process is used in order to obtain antimony with an overall impurity content not above 0.1–0.3%. In this this case the complete scheme for comprehensive treatment of antimony raw material includes: flame refining of ferrous metal electrolysis in solutions, solution purification from accumulated impurities, and anode …
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Electrochemical recovery of antimony and bismuth from spent
The metals most commonly recovered by electrolysis are gold, silver, copper, manganese, iron, nickel, cobalt, zinc, cadmium, tin and lead. The electro-recovery of metals by the electrolysis of solutions of metal compounds, employing an electrolytic cell in which the metal is deposited upon a cathode, has long been known and is widely …
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Recovery of high purity copper from waste printed circuit boards …
Slurry electrolysis with an ammonia system may be a perspective process to effectively recover high purity copper from WPCB-MPs. In this study, a novel and efficient ammonia slurry electrolysis system composed of CuSO 4 ·5H 2 O -NaCl-NH 3 ·H 2 O–(NH 4) 2 CO 3 is proposed for recovery of copper from WPCB-MPs.
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Selective extraction of arsenic and antimony from gold-bearing sludge
Slurry electrolysis was also presented to extract antimony from high arsenic and gold-containing stibnite ore to produce cathode metal antimony (Zhang et al., 2019). In general, hydrometallurgical methods are more environmental-friendly, and can be conducted in either alkaline or acidic systems. ... Recovery of alkali, selenium and arsenic from ...
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Ozonation leaching of a complex sulfidic antimony ore in hydrochloric
High antimony extraction (94.3%) with low iron dissolution (2.3%) is achieved under the following leaching conditions: 4.5 mol/L hydrochloric acid concentration, 2.0 L/min gas flow rate and 8:1 of the L/S ratio, leaching for 4.0 h at 65 °C. These results reveal that ozonation leaching of the complex sulfidic antimony ore in hydrochloric acid ...
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A review on the extraction and recovery of critical metals using …
Download : Download high-res image (156KB) Download : Download full-size image The image's components have been reoriented to descript the manuscript from inside to outside. High-temperature molten salt electrolysis technology uses high-temperature molten salt as the electrolyte to extract and recover critical metals by electrochemical …
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Electrolysis of a molten semiconductor | Nature Communications
By way of example we demonstrate the production of high-purity liquid antimony via direct electrolysis of the molten semiconductor, antimony sulfide (Sb 2 S 3), derived from its predominant ore ...
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Minerals | Free Full-Text | Preparation of Antimony Sulfide and
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 residue, thereby realizing the value-added use of antimony and the recovery of gold. In this study, the thermodynamic conditions of antimony …
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Extracting antimony from high arsenic and gold-containing …
This study investigated the leaching and electrowinning of antimony from a complex, high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using …
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Electrolytic recovery of antimony from natural stibnite ore
This paper outlines the hydrometallurgical processing and the various possible approaches for the recovery of metallic antimony from its antimonite sulphide …
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Recovery of rare earths, lithium, and fluorine from rare earth …
The recovery of REs in molten salt electrolysis processes is only 85–93 %, with most of remaining REs entering the REFMSES [10]. The REMSES generally contains about 20–80 % of REs [11], which is much higher than that in most rare earth ores.
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Electrochemical methods for materials recycling
46–48% Mn metallurgical ore, cost, insurance, and freight U.S. ports: 0.003252: Aluminum: ... For example, techniques such as slurry electrolysis 17,18 and electrodeposition 19,20 have been used to collect …
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Process flow-sheet for gold and antimony recovery from stibnite
DOI: 10.1016/S0304-386X(00)00107-9 Corpus ID: 98163036; Process flow-sheet for gold and antimony recovery from stibnite @article{Ubaldini2000ProcessFF, title={Process flow-sheet for gold and antimony recovery from stibnite}, author={Stefano Ubaldini and Franc Vegli{`o} and Pietro Fornari and Carlo Abbruzzese}, …
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Study on Pre-removal Antimony from Antimony–Gold
For a high calcium low antimony–goldGold concentrate (Ca–Sb–Au ore), this study proposed to pre-remove antimony using slurry electrolysisSlurry electrolysis in HCl–CaCl2 system. The ...
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Current processing technology for antimony-bearing ores a …
A flotation concentrate with a high silver grade (0.6% Ag) at 94.8% silver recovery, as well as high recoveries of antimony (86.8%), zinc (98.6%), and lead …
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Antimony Recovery from End-of-Life Products and Industrial …
9 Altmetric Explore all metrics Abstract Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb 2 O 3) …
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Extracting antimony from high arsenic and gold-containing …
Antimony was leached selectively and recovered in the form of cathode metal antimony in a single step. • In the slurry electrolysis process, the contamination of …
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A review of the technologies for antimony recovery from refractory …
For the purpose of efficient and selective antimony recovery with minimal economic cost and environmental impact, researchers proposed various innovative …
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A selective process for extracting antimony from refractory gold ore
In order to overcome this problem, Yang et al. utilized the sodium sulfide to extract the antimony from refractory gold ore, and the leaching recoveries of antimony and arsenic were 96.64% and 0. ...
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A review on the extraction and recovery of critical metals using …
The recovery rate of Li by paired molten salt electrolysis technology is only 95%, and the rest is below 90%. Finally, the electrolysis time is longer. The recovery of lithium-ion batteries by molten salt electrolysis technology mainly controls the type and purity of the reduction products by managing the electrolysis voltage and electrolysis …
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A review of the technologies for antimony recovery from refractory …
This study examined how pH hydrolysis affects the recovery process for antimony extracted from spent electrolytes. Various OH− reagents were used to adjust …
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Antimony Metallurgy | SpringerLink
Electrolytic refining of antimony is mostly realized by electrolysis of solution, where hydrofluoric acid and sulfuric acid solutions are used as electrolyte to …
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A Selective Method for Chemical Extraction of Antimony from
Antimony leaching from tetrahedrite-bearing ores was typically carried out by using Na2S-NaOH solutions. In the current paper, the detail mechanism of antimony leaching from tetrahedrite-rich concentrate via K2S and BaS lixiviants was investigated for the first time. Sample was characterized in terms of chemical, mineralogical, and …
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Zinc Metallurgy | SpringerLink
The waste fluid from double electrolysis is used for single electrolysis of zinc, to further recover the zinc and manganese. Pyrometallurgical Zinc Making In high temperature (more than 1000 °C), the carbonaceous reductant is used to reduce the zinc oxide in roasted ore to generate zinc vapor, which is condensed to become zinc metal.
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Process flow-sheet for gold and antimony recovery …
After 6 h electrolysis, trates, U.S.,1972, p. 3, 18r04r72. cathodic deposition of about 98% Sb was obtained, w4x L.H. Madkour, I.A. Salem, Electrolytic recovery of antimony at 150-A my2 current density with current …
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