Heterocoagulation
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Heterocoagulation of chrysotile with polytyrene latex / Heterocoagulação entre crisotila e latex de poliestireno
Chrysotile is a magnesium silicate with fibrous habit and ideal formula Mg6Si4O10(OH)8, having 1:1 layered structure of tetrahedral tridimite (silicate) with octahedral brucite (magnesium hydroxide). The layers are curved and rolled, resulting in cylindrical fibrils with brucite in the external surface and tridimite in the hollow internal surface. The fibril
Publicado em: 2007
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2. Coagulação/floculação de suspensões ricas em óxidos de ferro por sulfato de alumínio
The destabilization mechanism of suspensions of positively charged iron oxide particles by aluminum sulphate was investigated, aiming to evaluate the efficiency of the latter as a coagulant for natural surface waters from iron ore mining plants. Synthetic waters that simulate natural suspensions were used. The best coagulant dosage was found to be 100 mg/L a
Química Nova. Publicado em: 2004-10
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3. Cinetica de coagulação de latex de poliestireno
Polystyrene latex coagulation (by NaCl) was followed by density gradient centrifugation and light scattering measurements. Coagulation products obtained at various NaCl and latex concentrations and temperatures were determined; from these data, coagulation rate constants were calculated. Experimental rate constants at [NaCl] = 0.50 mol dm and T = 25 and 45°
Publicado em: 1990