New two-step extraction method in antimony speciation
Download Citation | New two-step extraction method in antimony speciation using HPLC-ICP-MS technique in inhalable particulate matter (PM2.5) | The present paper proposed an analytical method for ...
Suppressing the Trapping Process by Interfacial Charge Extraction …
DOI: 10.1021/ACSENERGYLETT.0C02660 Corpus ID: 234864142; Suppressing the Trapping Process by Interfacial Charge Extraction in Antimony Selenide Heterojunctions @article{Zhang2021SuppressingTT, title={Suppressing the Trapping Process by Interfacial Charge Extraction in Antimony Selenide Heterojunctions}, …
Mineralogical characterization and pretreatment for antimony extraction
The antimony extraction by ozone in hydrochloric acid was employed and the influences of temperature, liquid/solid ratio, HCl concentration and stirring speed on the extraction of antimony were investigated. High antimony extraction (93.75%) is achieved under the optimized conditions. After the pretreatment by ozone, the antimony is …
Efficient extraction of antimony(III) by titanate nanosheets: …
1. Introduction. Antimony, as a new global pollutant, is one of the most concerned toxic metal elements in the world. Antimony is widely applied in the manufacture of various flame retardants, glass, pigments, ceramics, medicine and chemical industry (Filella et al., 2002).Because of its extensive applications, a large number of antimony …
One-step extraction of antimony from low-grade stibnite …
The extraction of antimony from low-grade stibnite in eutectic Na2CO3–NaCl molten salt using ZnO as a sulphur-fixed agent was studied. The results of the experiments on the reaction mechanism ...
A cloud point extraction for spectrophotometric
We report on a simple, sensitive and reliable method for the cloud point extraction of antimony (Sb) and its subsequent spectrophotometric detection. It is based on the color reaction of Sb (III) with iodide in acidic medium and subsequent micelle-mediated extraction of tetraiodoantimonate using a non-ionic surfactant in the absence …
A selective process for extracting antimony from …
Based on these findings, a cleaner production process was proposed to selectively remove antimony in the form of sodium pyroantimonate from refractory gold ore. In this work, the complete process is presented in detail so as to provide …
A Review on Pyrometallurgical Extraction of …
Antimony. Article PDF Available. A Review on Pyrometallurgical Extraction of Antimony from Primary Resources: Current Practices and Evolving Processes. …
Extraction of antimony and tantalum from aqueous fluoride …
19F and 21Sb NMR spectroscopy and chemical analysis were used to study the composition and structure of fluoride complexes of antimony(V) and tantalum(V) in organic and aqueous phases in extraction by tributyl phosphate (TBP) and n-octanol. It is found that extraction from solutions containing a single element or both elements occurs …
Antimony Extraction from Galena Concentrates '2279
Keywords: antimony; Sb; arsenic; As; extraction; galena; sodium sulphide; leaching 1. Introduction Antimony is a metal with strategic importance and a wide range of applications. The research about antimony extraction is significant due to the fact that it is rarely found in nature alone, but mostly in association with other metals [1].
[PDF] Solvent extraction and separation studies of antimony…
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 … Expand
As Miners Chase Clean-Energy Minerals, Tribes Fear a …
Mining machinery on site will crush millions of tons of ore, then use cyanide to extract the gold. The waste, a contaminated sludge of 100 million tons of earth and water, will be stored in a ...
Minerals | Free Full-Text | Preparation of …
Moreover, China's antimony ore mining accounted for 52% of the world's antimony mining in 2020, with extraction of antimony ores also ranking first in the world . With the increasing development of …
Metals | Free Full-Text | One-Step Extraction of …
A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt, using iron oxide as sulfur-fixing agent, was presented.
High-Efficiency Organic Photovoltaic Cells With an Antimony …
2D materials with unique opto-electronic properties have shown immense potential for application in organic photovoltaics (OPVs). In this article, we reported a facile and efficient strategy to enhance the device performance of OPVs by doping 2D material of antimonene quantum sheets (AMQSs) into PEDOT:PSS emulsion. The interfacial …
Antimony (Sb)
Antimony (Sb) - Occurrence, Extraction, Properties and Applications. Antimony was (Sb) not known when antimony was first discovered, although it was known to exist in compounds by ancient civilisations. It was known to exist is metallic form in the 17th century and possibly even earlier. Antimony and several of its compounds are …
Primary Resources: Current Practices and Evolving …
Extraction of Antimony from Primary. Resources: Current Practices and. Evolving Processes. Processes 2022, 10, 1590. https://doi/10.3390/ pr10081590. …
One-step extraction of antimony from low-grade stibnite in …
DOI: 10.1016/J.JCLEPRO.2015.01.018 Corpus ID: 95845578; One-step extraction of antimony from low-grade stibnite in Sodium Carbonate – Sodium Chloride binary molten salt @article{Longgang2015OnestepEO, title={One-step extraction of antimony from low-grade stibnite in Sodium Carbonate – Sodium Chloride binary molten salt}, author={Ye …
(PDF) Accurate Determination of Total Antimony Using …
Using these extraction conditions 61%, 3.7% RSD and 42%, 2.2% RSD (n=6) of the total antimony in the real soil and Soil-7 samples, respectively could be extracted. Effect of no. of repeated ...
New two-step extraction method in antimony speciation
As a result, 30-minute extraction time was the longest extraction time without changing the original form of antimony under the reducing extraction system. 3.3.2. Optimization of oxidizing extraction procedure. Bound to organic matter fraction can usually be released by strong oxidizing reagents like concentrated HNO 3 or H 2 O 2. …
A review of the environmental chemical behavior, detection and
3. Antimony in environment3.1. Occurrence forms of antimony. Antimony is located in the VA group of the 5th period of the periodic table of elements, and there are four valence states (Sb(-III), Sb(0), Sb(III) and Sb(V)) (Filella et al., 2002a).In the surface environment and biological media, antimony usually exists in the form of Sb(III) and …
Selective Extraction of Antimony and Arsenic from
1–X. 4) with potential influence on antimony and arsenic removal from decopperization slime were examined and presented in Table 2. A randomized Rechtschaffner experimental design run order (Table 3) was produced after defining factors and their levels, factors' characteristic in terms of variability, and the responses in the MODDE 11.0 ...
(PDF) Selective liquid-liquid extraction of antimony(III) from
The extraction of antimony (III) from hydrochloric acid solutions with 1-[2-(2,4-dichlorophenyl)-4- propyl-1,3-dioxolan-2-yl]-1H-1,2,4-triazole was studied. Optimal extraction conditions are found ...
Antimony Recovery from End-of-Life Products and …
This paper gives a critical overview of the existing attempts to recover antimony from secondary sources. The paper also discusses the possibility of waste …
Metals | Free Full-Text | One-Step Extraction of Antimony in …
A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt, using iron oxide as sulfur-fixing agent, was presented. The influences of molten salt addition and composition, ferric oxide dosage, smelting temperature and duration on extraction …
Environmentally Friendly Leaching of Antimony from Mining …
This paper focuses on the environmental leaching of antimony, a critical mineral, using deep eutectic solvents. Mining residues often contain embedded antimony, posing environmental risks. Deep eutectic solvents, known for being low in toxicity, cost-effective, and environmentally friendly, present a promising avenue for sustainable …
Extraction of antimony by a copper chloride extractant
The reaction mechanism is explained with the fact that various antimony species predominate in the solution at various chloride ion concentrations. At acidities below 0.5 M, antimony extraction coefficient is a second order function of the acidity, while at acidities above 0.5 M, antimony extraction coefficient is independent of the acidity.
A Review on Pyrometallurgical Extraction of …
The matte smelting process consists of two sub-processes of matte-making and extraction of antimony metal from the matte. The latter consists of …
Raising the Efficiency of Antimony(III) Ion Extraction from …
We studied sorption extraction of antimony(III) cations as a function of time . Experimental data demonstrate that all of the synthesized sorbents have an increased affinity for antimony(III) cations in the presence of metal cations with much higher concentrations. Running the sorption process for 20–30 min ensures an essentially …
Extraction Process of Antimony from Stibnite by …
A new pyrometallurgical process to extract antimony from stibnite concentrate was proposed. Thermodynamic analysis of extraction process was conducted. Based on the thermodynamic analysis, the influence of volatilization temperature, volatilization time, blowing oxygen, low melting point slagging on the volatilization rate of antimony and the …