Methods for purifying table salt from the Suzak deposit

A.A. Anarbayev; B.N. Kabylbekova; B.M. Smailov; G.M. Ormanova

doi:10.31643/2026/6445.23

Authors

A.A. Anarbayev M.Auezov South Kazakhstan Research University
B.N. Kabylbekova M.Auezov South Kazakhstan Research University
B.M. Smailov M.Auezov South Kazakhstan Research University
G.M. Ormanova M.Auezov South Kazakhstan Research University

DOI:

https://doi.org/10.31643/2026/6445.23

Keywords:

sodium chloride, table salt, salt purification methods.

Abstract

One of the pressing issues today is common salt purification from harmful impurities and production of salt for medical and household purposes. To obtain high-purity sodium chloride salt, it is necessary to develop more effective methods for purifying salt from impurities. The article discusses modern methods for purifying Suzak deposit common salt from harmful impurities. The main goal of the scientific work is to study the methods of purifying sodium chloride from impurities. The common salt raw material composition was studied. The content of impurities of Са²⁺, Мg²⁺ and SO4²^- ions and heavy metals Pb (II), Cu (II), Cd (II), As (V) was determined. The solubility in the systems NаСl-Nа₂SO₄-Нᡃ₂O, NaCl-CaCl₂-H₂O and NаСl-MgCl₂-H₂O at a temperature of 100-110°C was studied. The effect of temperature and time on the common salt purification degree using active reagents was studied. It was found that the highest common salt purification degree from Са²⁺, Мg²⁺and SO4²^- at 30 minutes and 90°C, respectively, is 99.8%, 99.9%, 99.93%. It was found that the use of a three-component mixture of Mg(OН)₂:СаCО₃:CaSO₄ in a ratio of 1:4-5:6-7 for 20 minutes during purification allows purifying the NaCl solution from trace impurities of Pb(II), Cu(II), Cd(II), As(V) by 92.0-97.7% and obtaining 99.4% NaCI. To obtain high-purity salt, effective purification methods of salt from impurities are recommended, allowing to achieve a purification level of up to 99%.

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Author Biographies

A.A. Anarbayev, M.Auezov South Kazakhstan Research University

Doctor of Chemical Sciences, professor, Department of Technology of inorganic and Petrochemical Productions, M.Auezov South Kazakhstan University, 160000, Shymkent, Kazakhstan. ORCID ID: https://orcid.org/0000-0002-0019-4381

B.N. Kabylbekova, M.Auezov South Kazakhstan Research University

Candidate of Technical Sciences, Professor of the Department of Chemistry and Pharmaceutical Engineering, M.Auezov South Kazakhstan University, 160000, Shymkent, Kazakhstan. ORCID ID: https://orcid.org/0000-0001-8461-8008

B.M. Smailov, M.Auezov South Kazakhstan Research University

PhD doctor, Department of Scientific Research, M.Auezov South Kazakhstan University, 160000, Shymkent, Kazakhstan. ORCID ID: https://orcid.org/0000-0001-7976-9776

G.M. Ormanova, M.Auezov South Kazakhstan Research University

PhD doctoral student of the Department of Technology of Inorganic and Petrochemical Industries, M.Auezov South Kazakhstan University, 160000, Shymkent, Kazakhstan. ORCID ID: https://orcid.org/0000-0002-9625-5790

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