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Description
| - Interaction between bayerite, Al(OH)3, and silicic acid, H4SiO4, was studied in slightly acid solutions (pH ~ 4.2) at three Si/Al molar ratios (1:1, 1:3 and 1:5) under using of stirred batch reactors. The initial concentrations of H4SiO4 were 1.65x10-3 mol l-1 in all solutions. Two different concentrations of alkaline metals (K, Na), zero and 2x10-3 mol l-1, were adjusted in the solutions. At the initial stage of experiment (0-2 days), the H4SiO4 concentrations quickly decrease to the roughly limit values, between 1.55x10-3 and 1.60x10-3 mol l-1. This decrease, relatively slight (from 5x10-5 to 1x10-4 mol) and rapid (from -8.10-6 to -7.10-5 mol l-1 day-1), was linearly dependent on the bayerite content; it was interpreted as a (chemi)sorption of H4SiO4 on bayerite surface. At the advanced stages of experiment (2 200 days), the concentrations of H4SiO4 stagnated (the slopes of kinetic curves range from -7.10-8 to +2.10-7 mol l-1 day-1).
- Interaction between bayerite, Al(OH)3, and silicic acid, H4SiO4, was studied in slightly acid solutions (pH ~ 4.2) at three Si/Al molar ratios (1:1, 1:3 and 1:5) under using of stirred batch reactors. The initial concentrations of H4SiO4 were 1.65x10-3 mol l-1 in all solutions. Two different concentrations of alkaline metals (K, Na), zero and 2x10-3 mol l-1, were adjusted in the solutions. At the initial stage of experiment (0-2 days), the H4SiO4 concentrations quickly decrease to the roughly limit values, between 1.55x10-3 and 1.60x10-3 mol l-1. This decrease, relatively slight (from 5x10-5 to 1x10-4 mol) and rapid (from -8.10-6 to -7.10-5 mol l-1 day-1), was linearly dependent on the bayerite content; it was interpreted as a (chemi)sorption of H4SiO4 on bayerite surface. At the advanced stages of experiment (2 200 days), the concentrations of H4SiO4 stagnated (the slopes of kinetic curves range from -7.10-8 to +2.10-7 mol l-1 day-1). (en)
- Interaction between bayerite, Al(OH)3, and silicic acid, H4SiO4, was studied in slightly acid solutions (pH ~ 4.2) at three Si/Al molar ratios (1:1, 1:3 and 1:5) under using of stirred batch reactors. The initial concentrations of H4SiO4 were 1.65x10-3 mol l-1 in all solutions. Two different concentrations of alkaline metals (K, Na), zero and 2x10-3 mol l-1, were adjusted in the solutions. At the initial stage of experiment (0-2 days), the H4SiO4 concentrations quickly decrease to the roughly limit values, between 1.55x10-3 and 1.60x10-3 mol l-1. This decrease, relatively slight (from 5x10-5 to 1x10-4 mol) and rapid (from -8.10-6 to -7.10-5 mol l-1 day-1), was linearly dependent on the bayerite content; it was interpreted as a (chemi)sorption of H4SiO4 on bayerite surface. At the advanced stages of experiment (2 200 days), the concentrations of H4SiO4 stagnated (the slopes of kinetic curves range from -7.10-8 to +2.10-7 mol l-1 day-1). (cs)
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Title
| - Interakce bayeritu a kyseliny křemičité v slabě kyselém prostředí za normálních podmínek
- The interaction of bayerite and silicic acid in slightly acid solutions under ambient conditions (en)
- Interakce bayeritu a kyseliny křemičité v slabě kyselém prostředí za normálních podmínek (cs)
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skos:prefLabel
| - Interakce bayeritu a kyseliny křemičité v slabě kyselém prostředí za normálních podmínek
- The interaction of bayerite and silicic acid in slightly acid solutions under ambient conditions (en)
- Interakce bayeritu a kyseliny křemičité v slabě kyselém prostředí za normálních podmínek (cs)
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skos:notation
| - RIV/00216224:14310/05:00031059!RIV10-MSM-14310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216224:14310/05:00031059
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - bayerite; batch experiment; PHREEQC; saturation; silicic acid; sorption (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Geologické výzkumy na Moravě a ve Slezsku v roce 2004
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Faimon, Jiří
- Vybíhal, Karel
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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