Application of an experimental design in the hydrothermal synthesis of GIS-NaP zeolite from brickwall wastes

This article reports the results of an investigation carried out in order to obtain zeolitic material GIS-NaP type with high cation exchange capacity using brick waste. The hydrothermal synthesis was a stainless-steel reactor NaOH activating solutions at concentrations 2.0, 2.5 and 3.0 M, activation temperatures 100, 120 140 ℃ times 7, 8 9 hours. product obtained characterized by X-ray Fluorescence, Scanning Electron Microscopy (SEM), Diffraction, Cation Exchange Capacity (CEC).The showed that for conversion test ℃/2 M/7 hours, synthetic zeolite equal 163.5 meq/100 g obtained. statistical analysis, applying factorial experimental design, indicated main factors great effect on (CEC) are temperature interaction between it concentration solution, degree significance 0.049250 0.056631 confidence level 90.82%. An empirical mathematical model developed validated ANOVA analysis considers effects all optimized response surface methodology.