Characteristics and purification of Himalayan salt by high temperature melting

Himalayan rock salt contains a variety of minerals and trace elements, which is conducive to human health. The solutions of black rock salt and rose salt are alkaline, and the content of water insoluble matter is 0.34 and 0.083%, respectively. The element composition of water insoluble matter in roc...

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Main Authors: Deng Zhigan, Huang Xing, Wei Chang, Li Xingbin, Li Minting, Luo Xingguo
Format: Article
Language:English
Published: De Gruyter 2023-06-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp-2022-0274
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author Deng Zhigan
Huang Xing
Wei Chang
Li Xingbin
Li Minting
Luo Xingguo
author_facet Deng Zhigan
Huang Xing
Wei Chang
Li Xingbin
Li Minting
Luo Xingguo
author_sort Deng Zhigan
collection DOAJ
description Himalayan rock salt contains a variety of minerals and trace elements, which is conducive to human health. The solutions of black rock salt and rose salt are alkaline, and the content of water insoluble matter is 0.34 and 0.083%, respectively. The element composition of water insoluble matter in rock salt is determined and analyzed. It is found that the main component of two kinds of rock salt water insoluble matter is soil. Due to the presence of water insoluble matter in rock salt, according to the different specific gravity of molten sodium chloride and insoluble matter, rock salt was purified by high-temperature melting method. Rose salt is mainly studied during purification. The results showed that the content of insoluble matter in rose salt decreased from 0.083 to 0.0024% after holding at 950°C for 40 min; the contents of arsenic, barium, and lead decreased to 0.0032, 0.61, and 0.21 mg·kg−1, respectively; the content of sodium increased to 39.24%, the contents of calcium, magnesium, and iron reached to 2,200, 855, and 1.31 mg·kg−1, respectively.
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spelling doaj.art-a49499994242469aa89d1f047227938d2023-06-26T10:46:34ZengDe GruyterHigh Temperature Materials and Processes2191-03242023-06-01421pp. 22725110.1515/htmp-2022-0274Characteristics and purification of Himalayan salt by high temperature meltingDeng Zhigan0Huang Xing1Wei Chang2Li Xingbin3Li Minting4Luo Xingguo5Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaHimalayan rock salt contains a variety of minerals and trace elements, which is conducive to human health. The solutions of black rock salt and rose salt are alkaline, and the content of water insoluble matter is 0.34 and 0.083%, respectively. The element composition of water insoluble matter in rock salt is determined and analyzed. It is found that the main component of two kinds of rock salt water insoluble matter is soil. Due to the presence of water insoluble matter in rock salt, according to the different specific gravity of molten sodium chloride and insoluble matter, rock salt was purified by high-temperature melting method. Rose salt is mainly studied during purification. The results showed that the content of insoluble matter in rose salt decreased from 0.083 to 0.0024% after holding at 950°C for 40 min; the contents of arsenic, barium, and lead decreased to 0.0032, 0.61, and 0.21 mg·kg−1, respectively; the content of sodium increased to 39.24%, the contents of calcium, magnesium, and iron reached to 2,200, 855, and 1.31 mg·kg−1, respectively.https://doi.org/10.1515/htmp-2022-0274himalayan saltinsoluble matterpurificationhigh temperature melting
spellingShingle Deng Zhigan
Huang Xing
Wei Chang
Li Xingbin
Li Minting
Luo Xingguo
Characteristics and purification of Himalayan salt by high temperature melting
High Temperature Materials and Processes
himalayan salt
insoluble matter
purification
high temperature melting
title Characteristics and purification of Himalayan salt by high temperature melting
title_full Characteristics and purification of Himalayan salt by high temperature melting
title_fullStr Characteristics and purification of Himalayan salt by high temperature melting
title_full_unstemmed Characteristics and purification of Himalayan salt by high temperature melting
title_short Characteristics and purification of Himalayan salt by high temperature melting
title_sort characteristics and purification of himalayan salt by high temperature melting
topic himalayan salt
insoluble matter
purification
high temperature melting
url https://doi.org/10.1515/htmp-2022-0274
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AT lixingbin characteristicsandpurificationofhimalayansaltbyhightemperaturemelting
AT liminting characteristicsandpurificationofhimalayansaltbyhightemperaturemelting
AT luoxingguo characteristicsandpurificationofhimalayansaltbyhightemperaturemelting