Modified Hallimond Tube for Flotation Kinetics Measurements

Humeres, Eduardo; Debacher, Nito Ângelo; Wagner, T.; González, Gaspar

doi:10.1080/01496399308018053

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[4] Ion flotation and its variant, precipitate flotation, are considered separation methods with wide application possibilities ( Fig. [7] Therefore, the complexity of the flotation process is determined by: The theoretical approach of the precipitate flotation process has to consider the dynamics of the process, and therefore, the kinetic aspects.…”

Section: Marcel Dekker Inc • 270 Madison Avenue • New York Ny 10016mentioning

confidence: 99%

Kinetics of Cu²⁺Separation by Flotation

Stoica

Oproiu

Cosmeleata

et al. 2003

Separation Science and Technology

View full text Add to dashboard Cite

Precipitate flotation is one of the most efficient and economic separation methods that has been widely applied in the last few years for ionmolecular and colloidal species, both representing pollutant and useful substances.The separation of Cu 2þ aq species from diluted aqueous systems is often studied for environment protection and for the recovery of copper. A systematical study of the whole process has to consider the dynamics of the process in order to optimize it. This paper represents a study concerning the kinetics of Cu 2þ aq ions separation by precipitate flotation using alkylamine type (laurylamine) and alkylammonium salt (lauryltrimethylammonium chloride) as cationic collectors and alkylsulphate and alkylcarboxilic type(sodium laurylsulphate and sodium oleate) as anionic collectors. The experimental data 613 have been used in order to verify the classical first order model and three other first-order models, respectively, adjusted to the classical model. The experimental data have been analyzed with the PEAKFIT program.The results of the study sustain-by interpretation of the fitting parameters (the correlation coefficient, r, and the curve fit standard error, e)-a first-order kinetics for the separation process of Cu(II) hydroxide species by precipitate-flotation method.Among the studied kinetic models, the classical first-order model and the first-order reversible model is well fitting the experimental data, and the fully mixed reactor model describes, with acceptable errors, the Cu 2þ aq ions separation process by flotation.

show abstract

Section: Marcel Dekker Inc • 270 Madison Avenue • New York Ny 10016mentioning

confidence: 99%