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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Electrolysis03:00

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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Precipitation and Co-precipitation01:17

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Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
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Precipitation of Ions03:11

Precipitation of Ions

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Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
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Updated: Sep 9, 2025

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
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Solar-Driven Direct Lithium Extraction from Low-Quality Brines.

Lingjie Zhang1,2, Jianglin Yan1, Zhenlei Wang1,2

  • 1School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.

Advanced Materials (Deerfield Beach, Fla.)
|September 4, 2025
PubMed
Summary

Sustainable lithium (Li) extraction from low-quality brines is critical for decarbonization. Solar-driven direct lithium extraction (SDLE) offers a green, cost-effective solution, advancing resource sustainability and water production.

Keywords:
adsorptioncrystallization separationelectrochemical extractionlithium extractionlow‐quality brinesmembrane separationsolar interfacial evaporation

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Growing demand for lithium (Li) in energy transformation necessitates sustainable supply chains.
  • Low-quality brines represent vast, underexploited lithium reserves but face extraction challenges like low concentrations and high Mg:Li ratios.
  • Current lithium extraction methods are often energy-intensive and environmentally impactful.

Purpose of the Study:

  • To comprehensively review the principles, strategies, and advancements in solar-driven direct lithium extraction (SDLE) systems.
  • To explore the potential of SDLE for efficient and cost-effective lithium recovery from low-quality brines.
  • To bridge the gap between fundamental science and practical engineering for SDLE applications in resource sustainability.

Main Methods:

  • Systematic review of existing literature on SDLE technologies.
  • Analysis of various lithium extraction mechanisms including adsorption, membrane separation, crystallization, and electrochemical methods.
  • Evaluation of SDLE system designs for co-production of water and lithium.

Main Results:

  • SDLE systems demonstrate high efficiency and energy effectiveness for lithium extraction from challenging brines.
  • Diverse SDLE strategies (adsorption, membrane, crystallization, electrochemical) show promise for tailored applications.
  • Rational design of SDLE devices facilitates simultaneous water and lithium recovery.

Conclusions:

  • SDLE presents a promising, sustainable approach for exploiting low-quality brines.
  • Further research and development are needed to overcome challenges in scaling SDLE from lab to field.
  • SDLE technology is crucial for advancing resource sustainability and low-grade brine mining.