The Synthesis of Crystalline, Mono-Phase Copper and Zinc Arsenates (III)

• Autorzy: Behnajady Bahram , Moghaddam Javad

Identyfikatory

DOI

10.24425/amm.2024.151400

• Języki publikacji: EN

Abstrakty

EN

This research is part of a continuing effort to synthesize copper and zinc arsenates(III) to use as a zinc dust activator in zinc sulphate solution purification. In this paper, the feasibility of synthesizing crystalline, mono-phase zinc and copper arsenates (III) were investigated. Copper and zinc arsenates(III) were prepared by adding their sulphate solutions into arsenious solution obtained by dissolving As₂O₃ in NaOH aqueous solution. The structure and crystal lattice of the products and amount of the elements in precipitations were characterized by X-ray diffraction(XRD) and Atomic Absorption Spectrometry (AAS), respectively. Based on the results of XRD in the conditions of NaOH concentration = 1 mol/L, n(OH^-)/n(As) = 1:1, n(Cu)/n(As) = 1:2, reaction temperature 90°C and reaction time 8h, a mono-phase crystalline copper arsenate(III) with the chemical composition of Cu(AsO₂)₂ and tetragonal crystal lattice was synthesized. In these conditions, the yields of arsenic and copper precipitation from the solution were 93.81% and 97.68%, respectively. Based on the XRD results in the conditions of NaOH concentration = 1 L, n(OH^-)/n(As) = 1:1, n(Zn)/n(As) = 1:2, reaction temperature 80°C, reaction time 2h and washing pH = 6, a mono-phase crystalline zinc arsenate (III) with the chemical composition of Zn(AsO₂)₂ and monoclinic crystal lattice was synthesized. In these conditions, the yields of arsenic and zinc extraction from the solution were 77.70% and 46.37%, respectively.

Słowa kluczowe

EN

synthesis; copper arsenate (III); zinc arsenate (III); crystalline; zinc dust activator

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 4
• Strony: 1359--1365
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wzory

Twórcy

autor

Behnajady Bahram

• Sahand University of Technology, Materials Engineering Faculty, Advanced Material Research Centre, Tabriz 1996-51335, Iran

• https://orcid.org/0000-0001-9644-3559

autor

Moghaddam Javad

• University of Zanjan, Materials and Metallurgical Engineering Department, Zanjan 38791-45371, Iran

• https://orcid.org/0000-0002-2355-5848

Bibliografia

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