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تشنغتشو ، الصين

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arsenic antimony leaching

Efficient Leaching Arsenic and Recovering Antimony from High-Arsenic

Efficient Leaching Arsenic and Recovering Antimony from High-Arsenic Soot Zeyu Xiao, Haonan Liu, Xincun Tang & Zanlang Tang JOM ( 2023) Cite this article 47 Accesses Metrics Abstract A method for removing arsenic (As) from high-As soot and The leaching characteristics of metallurgical slag-based binders (MSB) solidified/stabilized tailings containing arsenic (As) and antimony (Sb), were investigated Investigation into the semi-dynamic leaching characteristics of arsenic

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Review on arsenic removal from sulfide minerals: An

Alkaline sulfide system is mainly a mixture consists of sodium sulfide and sodium hydroxide, which has strong selectivity for leaching of tin, gold, antimony, arsenic This work uses a nitric acid leaching method to remove As from crude antimony trioxide. Arsenic oxide and antimony oxide are respectively converted to Arsenic and antimony extraction from high arsenic smelter

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Evaluation of amendments to reduce arsenic and antimony leaching

Co-contamination of soils with arsenic (As) and antimony (Sb) presents unique challenges for risk management. In this study a sequence of leaching Firstly, the arsenic is selectively leached and separated from high-arsenic dust, then the residue is sent back to the smelter to recover lead, antimony and zinc. The Leaching behavior of metals from high-arsenic dust by

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Assessment of effectiveness in stabilization/solidification of arsenic

Suzuki S, Katoh M (2020) Estimation of potential arsenic leaching from its phases in excavated sedimentary and metamorphic rocks. Environ Geochem Hlth Arsenic and antimony are metalloids that exhibit similar geochemical behavior and are often found in the same mineral associations, co-occurring in mine waste derived from ore exploitation.Full article: Stabilization and encapsulation of

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Alkaline oxidative pressure leaching of arsenic and antimony

A new alkaline oxidative pressure leaching process was developed to remove arsenic from arsenic and antimony bearing dusts. The effect of NaOH The corresponding mechanisms of the leaching and recovering of arsenic and antimony were systematically investigated and confirmed by E-pH diagram, Comprehensive recovery of arsenic and antimony from arsenic

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A Selective Method for Chemical Extraction of Antimony

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 Arsenic, antimony, and lead enter the liquid phase in the form of ions in the oxygen pressure alkaline leaching system to achieve efficient and selective separation from precious metals. It is a very efficient method to effectively remove the difficult-to-separate impurities in the anode slime.Research on Separation and Extraction of Valuable Metals

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Leaching characteristics and stability assessment of

The leaching tests were performed using dilute glacial CH 3 COOH (pH = 4.93 ± 0.05) with a S/L ratio of 0.05 kg/L for 18 h in a Rotatory Agitation Apparatus rotating with 30 ± 2 rpm speed. The SPLP (USEPA, 1994) leaching procedure have been adopted to determine the leaching potential of arsenic from glass due to normal rainfall. The High concentrations of arsenic and antimony contamination in soil are a potential risk to the ecological environment and human health. Soil washing can effectively and permanently reduce the soil contamination. This study used Aspergillus niger fermentation broth as a washing agent to remove As and Sb from contaminated soil. Investigating the use of Aspergillus niger fermentation

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Speciation and mobility of arsenic and antimony in soils and

Gold mining activities have long been recognized as one of the most important local sources of arsenic (As) and antimony (Sb). While the environmental impact of As is documented in the literature from many mining regions worldwide, still little data is available concerning the environmental chemistry and associations of Sb. Here, we used Leaching kinetics and separation of antimony and arsenic from arsenic alkali residue. Adv. Mater. Res., 402 (2012), pp. 57-60. A Study on the Removal of Arsenic From Leaching Liquor of Arsenic-containing Alkaline Dregs by Precipitation as Ferric Arsenates. China’s Manganese Industry. (China), 24An alternative method for the treatment of metallurgical arsenic-alkali

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Investigation into the semi-dynamic leaching characteristics of arsenic

The leaching characteristics of metallurgical slag-based binders (MSB) solidified/stabilized tailings containing arsenic (As) and antimony (Sb), were investigated via a series of semi-dynamic leaching tests using three kinds of leachant, for the simulation of actual leaching conditions.The aim of the present study is to selectively extract antimony and arsenic from decopperization slime through alkaline sulfide hydrometallurgy with a view to recycle the obtained solid residue within the copper smelter, and also regenerate the sulfide lixiviant during the process. Rechtschaffner experimental design was used to evaluate the joint Selective Extraction of Antimony and Arsenic from Springer

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Separation and recovery of arsenic and alkali products

In present study, a novel process of twice alkali recovery with CO 2, deep alkali removal with H 2 SO 4, As(V) reduction with SO 2 and evaporation concentration to recover arsenic was proposed to dispose of the arsenic-alkali solution obtained by hot water leaching of antimony smelting arsenic-alkali residue. This process realizes the efficientThe pH-dependent leaching of antimony (Sb) and arsenic (As) from three typical Sb-bearing ores (Banxi, Muli and Tongkeng Antimony Mine) in China was assessed using a pH-static leaching experiment. The pH changes of the leached solutions and pH-dependent leaching of Sb and As occurred in different ways. For the Banxi and Muli Sb pH-dependent release characteristics of antimony and arsenic

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A novel approach to synthesizing sodium antimonate and

The raw material, arsenic–bearing antimony white (A–BAW), was collected from a smelter in Hunan Province, China. A–BAW was a by–product in pyrometallurgical process of jamesonite concentrate for extraction of Pb and Sb, and the simplified process was presented in Fig.S1.Chemical composition of the A–BAW was determined by Cyanidation tests on two ore samples from two different gold deposits are reported. The first sample contained 10.5. ppm gold with high arsenic and antimony.. The second sample had a low gold content (2.5 ppm) but a high silver content (160 ppm).The first series of test work focused on the determination of conditions for extracting gold Cyanidation of gold ores containing copper, silver, lead, arsenic

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Antimony, a pollutant of emerging concern: A review on

Antimony leaching from municipal solid wastes under simulated anaerobic landfill conditions is lower than arsenic because of the predominant presence of less mobile Sb(III) under reducing conditions. Nevertheless, significant leaching of antimony from plastic components in electronic/electrical equipment waste has been documentedCoexisting antimony (Sb) and arsenic (As) have raised worldwide concerns, but the factors controlling the mobilization of Sb and As in sediments near mining areas are not fully understood. Herein, multiple leaching methods and complementary spectroscopic analyses were used to investigate the mobility of Sb and As and its Acidity-dependent mobilization of antimony and arsenic in

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Arsenic and antimony extraction from high arsenic smelter

In this study, a combined process of alkaline pressure oxidative leaching (APOL) and Na 2 S leaching was proposed to extract arsenic and antimony from high arsenic smelter ash. The arsenic was selectively dissolved into the leachate during APOL, while the antimony was separated into the residue as insoluble NaSb(OH) 6.The effects 1. Introduction. Antimony (Sb) and arsenic (As) are identified as toxic and carcinogenic elements worldwide (Qi and Pichler, 2017, Sharifi et al., 2016).Sb and As have similar physiochemical properties and generally coexist in the geological environment as oxides and sulfide minerals (Dovick et al., 2020, Ye et al., 2020).Mining activities and Acidity-dependent mobilization of antimony and arsenic in

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Selective removal of arsenic from crude antimony trioxide by leaching

The presence of arsenic (As) in crude antimony trioxide (Sb 2 O 3) impedes the Sb recovery and results in an environmental issue.Selective As removal from crude antimony trioxide would therefore enable using this residue in commercial Sb 2 O 3 production. This work uses a nitric acid leaching method to remove As from crude Toxicity characteristic in leaching procedure of soil arsenic. The As concentration in the leachate of two extraction procedures had a significant positive relationship (R 2 =0.91), indicating that there was very little difference between the H 2 SO 4-HNO 3 method and horizontal vibration method for detecting the leaching behavior of Arsenic pollution, geochemical fractions, and leaching

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Selective removal of arsenic from crude antimony trioxide by leaching

This study shows that the leaching recoveries of antimony, arsenic, and lead in the first step were 75.04%, 99.18%, and 37.78%, respectively. The lead removal efficiency was 94.04% for theleaching process was used to treat arsenic-alkali residue, which realized the separation of arsenic and antimony. The leaching efficiencies of arsenic and antimony were 91.79% and 0.62%, respectively. The leaching residue could be returned to the antimony smelting system to recover antimony.Process and mechanism investigation on comprehensive

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