The use of membrane processes for lithium carbonate production – a comparative study between electrodialysis and membrane crystallisation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F24%3AN0000025" target="_blank" >RIV/28676092:_____/24:N0000025 - isvavai.cz</a>

Result on the web

<a href="https://conferences.avt.rwth-aachen.de/AMK" target="_blank" >https://conferences.avt.rwth-aachen.de/AMK</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The use of membrane processes for lithium carbonate production – a comparative study between electrodialysis and membrane crystallisation

Original language description

In recent years, the demand for lithium has dramatically increased, largely driven by the growth of electromobility and the corresponding need for lithium batteries. The global assumption is that the demand for lithium batteries in 2030 will be more than 11 times higher than in 2022. With limited access to primary lithium sources and lithium listed in the critical metal list in 2020, lithium recovery from secondary sources becomes more important. Several technologies have been investigated for this purpose, such as ion exchange, electrodialysis, and membrane crystallisation, each with challenges that necessitate optimisation. Ongoing research and development are vital for enhancing electrodialysis and other membrane processes and integrating different technologies to improve lithium recovery initiatives.In this work, the recovery of lithium carbonate was studied using two technologies. The first technology used was electrodialysis metathesis with a module made of polypropylene ion-exchange membranes followed by crystallisation. The second technology applied was membrane crystallisation using a module with anion-exchange hollow fibres. Final crystal purities and process parameters were studied and compared.Both technologies are promising for lithium carbonate recovery. Each technology has advantages - the advantage of electrodialysis lies in the high purity of intermediate product and applicability to different solution compositions. The advantage of membrane crystallisation is the low pressure and energy consumption required for operation. However, there are disadvantages in both technologies - high energy consumption during electrodialysis and the required higher purity of the raw material during membrane crystallisation. Both technologies require further development, and the technology choice depends on the quality of feed solution.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů