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National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.00 seconds. 
Separation of Hydrated Aluminum Oxide during Production of the 26-13S Fertilizer from Ammonium Alum
 Jirátová, Květa ; Klempa, Jan
Conversion of ammonium alum with ammonia without and in the presence of ammonium sulfate was studied.
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Modifikace směsných oxidů Co-Mn-Al promotory a jejich vliv na vlastnosti a aktivitu při oxidaci VOC
 Mikulová, Z. ; Jirátová, Květa ; Klempa, Jan ; Kovanda, F.
The influence of the catalysts chemical composition and of the mode of promoters incorporation on the activity and selectivity in VOC oxidation was studied. In total oxidation of toluene, the most active Co4MnAl catalysts were those containing low concentration of potassium regardless the mode of modification, while in ethanol total oxidation the catalyst impregnated with higher potassium concentration (3 wt%) was the most active. Introduction of Pt and Pd in amounts 0.5 or 0.1 wt% into the Co4MnAl catalyst did not improve its catalytic activity. The impregnation method appears to be more effective mode of catalyst modification than the method using an addition of promoters in the stage of coprecipitation of the LDH precursor.
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Modifikace Ni-Mg-Mn a Co-Mn-Al směsných xididů pro úplnou oxidaci VOC.
 Mikulová, Zuzana ; Kovanda, F. ; Rojka, T. ; Klempa, Jan ; Jirátová, Květa
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National Repository of Grey Literature : 13 records found   previous11 - 13  jump to record:
See also: similar author names
5 Klempa, Jaroslav
1 Klempa, Jiří
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