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The process included three steps: 1) leaching of antimony from the refractory gold ore with sodium sulfide solution; 2) pressure oxidation of the leaching …
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].
AlSioufi et al. evaluated the employ of microwave assisted radiation as alternative for the extraction of antimony inorganic species from airborne particulate matter samples using HPLC-AFS. Antimony species were extracted utilizing Hydroxylammonium chloride solution. However, the extractions were quantitative for …
Arsenic (As) mobility and transport in the environment are strongly influenced by arsenic's associations with solid phases in soil and sediment. We have tested a sequential extraction procedure intended to differentiate the following pools of solid phase arsenic: loosely and strongly adsorbed As; As coprecipitated with metal oxides or …
Depending on the grade of antimony in the concentrate, different pyrometallurgical methods can be used to extract antimony . For low-grade ores (5–25 …
Antimony has been listed as a critical pollutant in many countries because of its toxic effects on earth organisms. In this study, titanate nanosheets (TNS) were prepared with a high specific surface area by alkaline hydrothermal method. The adsorption mechanism and adsorption capacity of removing S …
What is more, arsenic is a commonly associated metal of antimony which makes simultaneous processing critical. And gold extraction technology preferred to being non-cyanide and short-flow in the contemporary age. ... In this work, we attempted to offer a non-cyanide Au-extraction method for the high As-and Sb-bearing sulphide refractory …
Antimony is a cumulative toxic element that has been detected in natural waters at ultratrace levels . The importance of antimony determination is reflected by the fact that the U.S. Environmental Protection Agency (EPA) considers it a priority pollutant and the Council of the European Communities established the maximum admissible …
For P determination using the MG colorimetric method (Fig. 1), 20 or 40 μL aliquot of NaHCO 3 extract was mixed with 20 μL MG reagent and 10 μL PVA reagent in each well of 96-well polystyrene microplate (Corning costar 3590, Corning Incorporated Co., Ltd., diameter/per well: 6.4 mm) and shaken for 1 min in horizontal direction, and then …
the percentage extraction of antimony was found to decrease (Fig. 1). Moreover, the extraction from sulfuric acid (71.00 %), perchloric acid (69.52 %), hydro-bromic acid (81.06 %) were incomplete and from nitric acid medium emulsion for-mation was observed. Extraction as a function of N-n-octylaniline concentration
The application of this method to real samples allowed extraction of 50% of total antimony content from spinach, while antimony extracted from carrots and onion samples ranged between 50 and 60 and 54 and 70%, respectively. Only Sb(V) was detected in three roots (onion and spinach) that represented 60-70% of the total antimony in the extracts.
This article summarizes the main extraction methods for sedimentary phosphorus (P) determination. With sequential chemical extractions, P is supposed to be selectively removed from different compounds in the sediments. Extraction schemes using strong acids and alkaline solutions have been tested on different sediments and found …
A Selective Method for Chemical Extraction of Antimony from Tetrahedrite-Rich Concentrate by BaS and K 2 S Lixiviants: Mechanism and Kinetic Studies. J. …
A novel and simple method based on selective solid phase extraction (SPE) separation of antimony(III) and highly sensitive inductively coupled plasma mass spectrometric (ICP-MS) detection of total antimony andAntimony(V) in the aqueous phase of the sample is described.
Article. A review of the technologies for antimony recovery from refractory ores and metallurgical residues. October 2022. Mineral Processing and Extractive …
Extraction of Antimony from Primary. Resources: Current Practices and. Evolving Processes. Processes 2022, 10, 1590. https://doi/10.3390/ pr10081590. …
The dependences of the influence of sulfide sodium and sodium hydroxide concentration, and the liquid to solid ratio on antimony extraction into solution were determined by methods of mathematical ...
RSM optimization studies show that a maximum of 99% antimony extraction can be achieved in the first 15 min. The study's results suggest that employing a designed nanofluid-based emulsion membrane could be a feasible and economically efficient method for the removal of antimony, tin, and tellurium heavy metals.
Antimony can be extracted from an industrial side stream by hydrolysis with water. •. Antimony extraction yields >90% were obtained. •. Antimony content of the …
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 …
N-n-Octylaniline in xylene was used for the extraction separation of antimony(III) from hydrochloric acid media. Antimony(III) was extracted quantitatively with 10 mL 4 % N-n-octylaniline in xylene.
The significant correlations (r 2) of Mogen method, distilled water extraction method, basify distilled water extraction method and acetic acid extraction methods with Olsen method were 0.734, 0. ...
There are two main types of modern antimony production methods—pyrometallurgy and hydrometallurgy [1,2,3].At present, the former is the main. The vast majority of antimony smelting enterprises have been using the traditional blast furnace volatile–reverberatory furnace reduction process, which is of low environmental …
Chemistry. Antimony. Article PDF Available. A Review on Pyrometallurgical Extraction of Antimony from Primary Resources: Current Practices …
In this context, the search for secondary antimony extraction methods is of major interest. Potential candidate secondary sources of antimony include the by-products of pyrometallurgical copper extraction and refining. The final stage of the copper process involves electrolytic refining from 99.7%-pure copper anodes. These anodes contain ...
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 …
According to the method, the soil is extracted with 0.5 mol solution of sodium bicarbonate at pH 8.5. In calcareous, alkaline or neutral soils containing calcium phosphate, this extracting ...
Related NIOSH Resources. NIOSHTIC-2 search results on antimony—NIOSHTIC-2 is a searchable database of worker safety and health publications, documents, grant reports, and journal articles supported in whole or in part by NIOSH.; Immediately Dangerous to Life or Health IDLH) Value Profile: Antimony (as Sb)—NIOSH reviews relevant scientific …
Spectrophotometric methods with suitable complexing agents or extraction methods can be used for detection of low-level antimony (González et al., 2005). For instance, antimony estimation through cloud point extraction followed by its spectrophotometric detection yields linear calibration in the range 0.80–95 ppb and a …
(3) Flotation Flotation is the most important extraction method for antimony mineral deposits. Antimony sulfide mineral deposits are easy-to-float mineral deposits, and flotation methods are mostly used to increase the crystal position of the ore.
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