Industrial & Engineering Chemistry Research · 2000 · 14 citations · 4 references
EngineeringMaterials EngineeringMaterials ScienceCeramicsResource RecoverySolid Waste ManagementGlass MaterialsGlass RecoveryMaterials RecoveryReclaimed MaterialsRecycled MaterialsRecyclingAlkali TreatmentChemical Reaction MechanismsChemical StepGlass ReprocessingReclaimed GlassRecycled Glass MaterialsRecycling Of PowderSeed Crystal Selection
The recovery of SiO 2 and Al 2 O 3 from the alkali waste solution of the glass polishing powder-recycling process was investigated. The effects of seed crystal, stirring speed, and temperature were also studied. Hydroxysodalite was obtained from the waste solution by heating to 80−100 °C. Addition of seed crystal shortened the reaction time and made easy the recovery of hydroxysodalite. The hydroxysodalite deposition process was rate-determined by the chemical reaction step, and increased temperature was also effective in shortening a reaction time.
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