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Research and development of the process for production of extra pure ammonium aluminium sulphate II
Rodová, A. ; Hora, L. ; Bezucha, P. ; Synek, V. ; Kokšal, J. ; Hodslavská, J. ; Hostomský, Jiří ; Hostomská, Věra
295 Research and development of the process for production of extra pure ammonium aluminium sulphate, where the concentration of contaminants does not exceed 0.3 ppm for Ca, Co, Cr, Fe, Mg, Mn, Pb, Si, Ti, Zn, 2.0 ppm for Ga and Na and 3.0 ppm for K. Preparation of ammonium aluminium sulphate (alum) solution by dissolution of aluminium hydroxide in sulphuric acid solution and by addition of ammonia. Purification of alum by crystallization and recrystallization.
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Research and development of the process for production of extra pure ammonium aluminium sulphate I
Rodová, A. ; Wildnerová, M. ; Janoš, P. ; Bezucha, P. ; Domský, V. ; Hostomský, Jiří ; Hostomská, Věra ; Velická, Jana
Research and development of the process for production of extra pure ammonium aluminium sulphate, where the concentration of contaminants does not exceed 0.3 ppm for Ca, Co, Cr, Fe, Mg, Mn, Pb, Si, Ti, Zn, 2.0 ppm for Ga, and Na and 3.0 ppm for K. Evaluation of suitable raw materials; analytical methods for determination of contaminant concentrations; determination of phase equilibria in the system sulphuric acid ů ammonium sulphate ů aluminium sulphate ů water.
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