Removal and Recovery of Arsenic(III) from Hydrochloric Acid Leach Liquor of Tungsten Slag by Solvent Extraction with 2-Ethylhexanol

Zeng, Luqi; Yang, Tianzu; Guo, Lei; Chenggang, Liao; Chen, Ping; Liu, Jiaxun; Huo, Guangsheng

doi:10.1007/s11837-022-05369-y

Cited by 6 publications

(7 citation statements)

References 33 publications

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“…Авторами работы [245] Как видно из рисунка, с ростом концентрации экстрагента заметно возрастает соэкстракция железа, вероятно, за счет извлечения Fe(III). При этом степень извлечения мышьяка меняется в меньшей степени, обеспечивая высокие коэффициенты разделения элементов лишь при достаточно низкой концентрации 2ЭГ.…”

Section: экстракция мышьяковых кислот одноатомными вжсunclassified

“…Например, при экстракции 10 об. % 2ЭГ в керосине коэффициент разделения элементов достигает βAs/Fe = 257, что соответствует извлечению 84.9 % As(III) при соэкстракции только 2.1 % Fe [245].…”

Section: экстракция мышьяковых кислот одноатомными вжсunclassified

“…Результаты лабораторных испытаний экстракции одноатомными ВЖС и их смесями с диолами из реальных технологических растворов приведены в публикациях [245,247,249].…”

Section: опыт и перспективы применения экстракции мышьяковых кислот о...unclassified

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Solvent extraction of mineral acids with aliphatic alcohols and alcohol-based mixtures

Kasikov,

Dvornikova,

Shchelokova

et al. 2024

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The monograph summarizes the literature data and the authors' results on the chemistry and technology of some mineral acid’s solvent extraction (hydrofluoric, hydrochloric, sulfuric, nitric, phosphoric, boric and arsenic acids) with high-molecular aliphatic alcohols and extraction mixtures based on. The first chapter provides general information about the physicochemical and toxicological alcohol properties, their production and consumption, and concludes they were promising industrial extractants. The second part of the book systematizes the data on the chemistry of extraction with alcohols of each of the acids listed and reviews the proposed promising and commercially developed extraction technologies using extractants based on high-molecular-weight alcohols; the results of large-scale and semi-industrial tests are presented. Il. –– 78, tab. –– 57, bibliogr. –– 251. The publication is intended for engineering and technical workers of industrial enterprises, scientific organizations and students and graduate students of chemical and environmental specialities.

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Section: экстракция мышьяковых кислот одноатомными вжсunclassified

Section: опыт и перспективы применения экстракции мышьяковых кислот о...unclassified

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Solvent extraction of mineral acids with aliphatic alcohols and alcohol-based mixtures

Kasikov,

Dvornikova,

Shchelokova

et al. 2024

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“…[3][4] Arsenic polluted drinking water causes serious health problems such as cancer, skin diseases and cardiac disorders, and it has been reported that South Asian and South American countries are more influenced by this metal. [3] Numerous approaches, such as ion exchange, [5][6][7][8][9] adsorption, [10][11][12] chemical precipitation, [13][14] solvent extraction [15][16] and membrane processes [17][18] have been employed to separate arsenic ions from wastewater. However, some of these conventional methods suffer from different drawbacks such as low mass transfer, expensive equipment, less efficiency and solvent loss.…”

Section: Introductionmentioning

confidence: 99%

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Ghasemi,

Abdi,

Nasiri

2024

ChemistrySelect

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As(III) is a dangerous species that contaminates groundwater resources and therefore water purification from this element is necessary. In this study, the removal of As(III) was investigated by the emulsion liquid membrane (ELM) technique due to the high toxicity levels of this species. The effect of various parameters such as hydrochloric acid and arsenic concentration in the feed solution, emulsion to feed ratio, surfactant concentration and type of carrier was evaluated on the arsenic separation efficiency. The results showed that the best type of carrier in terms of emulsion stability and separation efficiency of arsenic ions was di‐(2‐ethylhexyl) phosphoric acid (D2EHPA), and its optimal concentration was about 5 % (v/v). In addition, paraffin as the organic solvent performed better than the mixture of paraffin and kerosene in the separation of As(III) ions. The optimal conditions were obtained at 8 and 0.1 M HCl concentrations for the feed and the internal phases, respectively. Also, the emulsion to feed ratio of 1 : 4.5, the volume ratio of the internal phase to the membrane phase of 1 : 1 and the surfactant concentration of 5 % (v/v) led to achieving the maximum removal of arsenic ions. This work presents a broad perspective of removing As(III) ions from wastewater by carefully examining the parameters influencing the separation of this hazardous element through the ELM method.

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“…The arsenic compound in petroleum condensate is identified by Fourier-transform infrared spectroscopy (FTIR). The types of extractants investigated are based on extractants and stripping solutions which are aqueous solutions in previous studies, as shown in Table 2 [ 4 , 7 , [32] , [33] , [34] , [35] , [36] ]. Response Surface Methodology (RSM) based on Box-Behnken design (BBD) is employed to optimize the operating condition such as concentration of extractant and O/A ratio.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of arsenic removal from petroleum condensate via liquid-liquid extraction: Thermodynamics, kinetics, DFT and McCabe-Thiele method

Purktimatanont,

Mohdee,

Pancharoen

et al. 2023

Heliyon

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Removal and Recovery of Arsenic(III) from Hydrochloric Acid Leach Liquor of Tungsten Slag by Solvent Extraction with 2-Ethylhexanol

Cited by 6 publications

References 33 publications

Solvent extraction of mineral acids with aliphatic alcohols and alcohol-based mixtures

Solvent extraction of mineral acids with aliphatic alcohols and alcohol-based mixtures

Removal of High Concentrations of Arsenite from Aqueous Solutions by the Emulsion Liquid Membrane Technique

Synergistic effect of arsenic removal from petroleum condensate via liquid-liquid extraction: Thermodynamics, kinetics, DFT and McCabe-Thiele method

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