Physicochemical Processes during Precipitation of Silica from Geothermal Brine
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Physicochemical properties of the silica–geothermal brine colloidal system are investigated. The reaction order and the rate constants for silica polymerization are determined, the radius of colloidal particles is measured, and their charge is estimated. The mechanism of coagulation and precipitation of colloidal silica by metal cations is experimentally studied. On the basis of the results obtained, a basic process to recover silica from the geothermal heat-transfer medium is designed.
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- Physicochemical Processes during Precipitation of Silica from Geothermal Brine
Theoretical Foundations of Chemical Engineering
Volume 38, Issue 1 , pp 72-80
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