КINETICS OF MASS TRANSFER IN HETEROGENEOUS SYSTEM «DIMETILHLORSILANAEROSIL – DIPOLAR SOLVENT – AQUEOUS SOLUTION OF EASILY HYDROLYZED CATIONS»
A comparative analysis of the mass transfer kinetics of easily hydrolyzed cations hydroxoforms the aqueous phase (LGK – Bi3 +, Sb3 +, Ti4 +, Al3 +, Ga3 +, In3 +, Fe3 + and Cr3+) was made on the dimethylchlorosilaneaerosile surface (DМCSA), impregnated by acetone, and its unmodified counterpart – aer...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnikov National University
2014-12-01
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| Series: | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
| Subjects: | |
| Online Access: | http://heraldchem.onu.edu.ua/article/view/32064 |
| Summary: | A comparative analysis of the mass transfer kinetics of easily hydrolyzed cations hydroxoforms the aqueous phase (LGK – Bi3 +, Sb3 +, Ti4 +, Al3 +, Ga3 +, In3 +, Fe3 + and Cr3+) was made on the dimethylchlorosilaneaerosile surface (DМCSA), impregnated by acetone, and its unmodified counterpart – aerosile A-300. It was shown, that the mass transfer kinetics of LGK in heterogeneous system «DMHSA – dipolar solvent – aqueous solution of LGK» is determined by formation of neutral sorption-active hydroxoforms by hydrolysis in aqueous solution according to the depth of the corresponding constants, and the extraction-sorption process for their transition to a thin layer impregnated dipolar solventhydrophilized and further consolidation on residual silanol groups occurs quite rapidly. The mass transfer kinetics accelerates for the A-300 as compared with DMHSA due to the implementation on the hydrated silica matrix A-300 of additional surface hydrolysis of LGK. |
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| ISSN: | 2304-0947 2414-5963 |