A Study on the Evaporative Concentration of Sulfate-Type Brine and the Efficiency of Boron Recovery by Dilution

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The efficiency of boron recovery using the 'dilution to salt' method is highly dependent on brine chemical composition, achieving over 90% recovery in magnesium sulfate subtype brines due to B6O7(OH)6^2- polymerization, but showing reduced effectiveness in sodium sulfate subtype brines due to competitive crystallization. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Pengyang Cui; Zhenrong Hu; Jiaoyu Peng; Yaping Dong; Wu LI

doi:10.3724/j.yhyj.2025084

April 1, 2026Journal of Salt Lake ResearchOpen Access

A Study on the Evaporative Concentration of Sulfate-Type Brine and the Efficiency of Boron Recovery by Dilution

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Key Points

The aim is to investigate the effects of different brine types on boron recovery efficiency through dilution crystallization.
Compared brine from two locations: Daqaidam (sulfate magnesium) and Jibuchaka (sulfate sodium).
Utilized Raman technology and crystallization kinetics to analyze boron species evolution and dilution effects.
Examined the ionic environments and crystallization behaviors of the two brine types.
Boron recovery rate in sulfate magnesium brine reached over 90% with high purity due to favorable supersaturation conditions.
Chemical composition significantly affected boron separation; lower B6O7(OH)62- levels in sulfate sodium brine reduced efficiency.
The results offer key theoretical and technical support for the green development of boron resources in various salt lakes.

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Implication

Shows the impact of brine chemical composition on boron recovery efficiency, suggesting methods for diverse salt lakes.

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Cui et al. (2026) studied this question.

synapsesocial.com/papers/6a17dbe93fad632b0f9d8941 https://doi.org/10.3724/j.yhyj.2025084

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A Study on the Evaporative Concentration of Sulfate-Type Brine and the Efficiency of Boron Recovery by Dilution

Key Points

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Cite This Study

A Study on the Evaporative Concentration of Sulfate-Type Brine and the Efficiency of Boron Recovery by Dilution

Key Points

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Abstract

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