Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/35135| Título: | The deflocculation of kaolin suspensions : the effect of various electrolytes |
| Autor(es): | Penkavová, V. Guerreiro, Margarida Tihon, J. Teixeira, J. A. |
| Palavras-chave: | kaolin suspensions deflocculants viscosity measurements stability of suspensions |
| Data: | 14-Out-2013 |
| Citação: | Penkavová, V.; Guerreiro, Margarida; Tihon, J.; Teixeira, J. A., The deflocculation of kaolin suspensions - the effect of various electrolytes. CHISA 2013 - 20th International Congress of Chemical and Process Engineering. Srní, Czech Republic, Oct. 14-17, 1-10, 2013. |
| Resumo(s): | The deflocculation effect of conventional additives to kaolin suspensions is evaluated from the results standard rheological measurements. Several widely used electrolytes (NaOH, Na2C03, Na2Si03, SHMP = sodium hexametaphosphate, and CMC = sodium salts of carboxymethylcellulose) have been tested. The optimal concentrations of these deffloculants, in respect to reaching the maximum reduction of initial suspension viscosity, are found. The stability of deflocculated kaolin suspensions against sedimentation is evaluated and different aspects of the observed flow enhancement discussed. Inorganic electrolytes are found to be more effective in viscosity reduction, but on the other hand, low-molecular organic CMC additives produce more stable final suspensions. |
| Tipo: | Artigo em ata de conferência |
| URI: | https://hdl.handle.net/1822/35135 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| document_21019_1.pdf | 2,91 MB | Adobe PDF | Ver/Abrir |
