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Chien-Shun Chen, Ying Yin Lau, Sean M. Mercer, Dr. Tobias Robert, Prof. Dr. J. Hugh Horton and Prof. Dr. Philip G. Jessop The Effect of Switchable Water Additives on Clay Settling ChemSusChem 6

Version of Record online: 3 SEP 2012 | DOI: 10.1002/cssc.201200465

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The use of inorganic salts to enhance clay settling in aqueous suspensions is a common industrial process. Recycling and/or treatment of this high salinity water after use are necessary environmental and economical practices but are often energetically costly. We propose the use of switchable water, a reversible ionic strength aqueous solvent, as a means to settle clays rapidly with easy recycling of the process water.

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