SciELO - Scientific Electronic Library Online

 
vol.28 número2Effect of temperature and storage time of wheat germ on the oil tocopherol concentrationEsterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Brazilian Journal of Chemical Engineering

versão impressa ISSN 0104-6632

Resumo

SAHU, S.; KAVURI, N. C.  e  KUNDU, M.. Dissolution kinetics of nickel laterite ore using different secondary metabolic acids. Braz. J. Chem. Eng. [online]. 2011, vol.28, n.2, pp.251-258. ISSN 0104-6632.  http://dx.doi.org/10.1590/S0104-66322011000200009.

The dissolution kinetics of nickel laterite ore in aqueous acid solutions of three metabolic acids, i.e., citric acid, oxalic acid and acetic acid were investigated in a batch reactor individually. It was determined that experimental data comply with a shrinking core model. The diffusion coefficients for citric acid, oxalic acid and acetic acid were found to be 1.99×10-9 cm2/s, 2.59×10-8 cm2/s and 1.92×10-10 cm2/s respectively. The leaching ability of each acid was observed and it was found that oxalic acid was better than the other two.

Palavras-chave : Dissolution kinetics; Laterite ore; Leaching; Pseudomonas putida.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons