Capacity Assesment And Potential For Reuse Of Calcined Bofe Bentonitic Clay For Adsorption Of Nickel

dc.creatorAdeodato Vieira
dc.creatorMelissa Gurgel; de Almeida Neto
dc.creatorAmbrosio Florencio; Gimenes
dc.creatorMarcelino Luis; Carlos da Silva
dc.creatorMeuris Gurgel
dc.date2016
dc.dateagos
dc.date2017-11-13T11:31:00Z
dc.date2017-11-13T11:31:00Z
dc.date.accessioned2018-03-29T05:46:04Z
dc.date.available2018-03-29T05:46:04Z
dc.identifierCanadian Journal Of Chemical Engineering. Wiley-blackwell, v. 94, p. 1457 - 1465, 2016.
dc.identifier0008-4034
dc.identifier1939-019X
dc.identifierWOS:000383705100006
dc.identifier10.1002/cjce.22528
dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/cjce.22528/abstract
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/325838
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1362844
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThis work aims to evaluate different eluents in cycles of nickel adsorption/desorption on calcined Bofe clay. The following eluents were used sequentially for nickel desorption: H2SO4 0.25 mol/L, NaCl 1.0 mol/L, CaCl2 0.10 mol/L, and EDTA 0.10 mol/L. Physical-chemical characterization analyses of Bofe clay samples were carried out under different conditions to evaluate the effect of the remaining metal on the adsorbent submitted to adsorption/desorption cycles. The adsorbent material was characterized by the following techniques: energy dispersive X-ray spectroscopy (EDX), thermogravimetry (TG), differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and N-2 physisorption (BET). Statistica 5.0 was used as a computational tool to adjust the rate quasi-chemical solution to the experimental data of the breakthrough curves. From the new function obtained, breakthrough curves for different bed heights could be also simulated. An increase of the clay surface area and a reduction of real density after the passage of the four eluents were observed. Among the tested eluents, NaCl (1 mol/L) presented the highest percentage of desorption (88.08 %). The nickel adsorption/desorption cycles study showed that Bofe clay retains the same nickel adsorption capacity throughout the four evaluated cycles.
dc.description94
dc.description8
dc.description1457
dc.description1465
dc.descriptionCNPq
dc.descriptionCAPES
dc.descriptionFoundation for Research Support of Sao Paulo State, FAPESP
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherWiley-Blackwell
dc.publisherHoboken
dc.relationCanadian Journal of Chemical Engineering
dc.rightsfechado
dc.sourceWOS
dc.subjectAdsorption
dc.subjectBentonite Clay
dc.subjectNickel
dc.subjectMetal Removal
dc.titleCapacity Assesment And Potential For Reuse Of Calcined Bofe Bentonitic Clay For Adsorption Of Nickel
dc.typeArtículos de revistas


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