Separation of platinum(IV) across hollow fiber supported liquid membrane using non-toxic diluents: Mass transfer and thermodynamics

[Display omitted] •Non-toxic diluents were applied to separate platinum(IV) across HFSLM.•91.41% extraction and 81% stripping were obtained by sunflower oil at 328.15K.•Overall mass transfer resistance (1/K) of 146.612×104s/cm was obtained.•The separation process is exothermic (ΔHex0=−975.20kJ/mol)....

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Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2017, 54(0), , pp.278-289
Main Authors: Wongkaew, Krirkratthawit, Mohdee, Vanee, Pancharoen, Ura, Arpornwichanop, Amornchai, Lothongkum, Anchaleeporn W.
Format: Article
Language:English
Subjects:
HFSLM
Non-toxic diluents
Platinum(IV)
Sunflower oils
Thermodynamics
화학공학
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container_start_page 278
container_title Journal of industrial and engineering chemistry (Seoul, Korea)
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creator Wongkaew, Krirkratthawit
Mohdee, Vanee
Pancharoen, Ura
Arpornwichanop, Amornchai
Lothongkum, Anchaleeporn W.
description [Display omitted] •Non-toxic diluents were applied to separate platinum(IV) across HFSLM.•91.41% extraction and 81% stripping were obtained by sunflower oil at 328.15K.•Overall mass transfer resistance (1/K) of 146.612×104s/cm was obtained.•The separation process is exothermic (ΔHex0=−975.20kJ/mol).•A modified Apelblat model gave an excellent match for predicting the extraction of platinum(IV). Non-toxic diluents were studied and compared with toxic diluents for separation of platinum(IV) across hollow fiber supported liquid membrane. 91.41% extraction and 81% stripping of platinum(IV) was observed for sunflower oils at 328.15K. Overall mass transfer resistance (R) was 146.612×104s/cm. The separation process was exothermic (ΔHex0=−975.20kJ/mol) and spontaneous (ΔGex0=−326.447J/mol). The Ea of 1.673kJ/mol indicated that the diffusion of complex species across the liquid membrane controlled the mass transfer step. Moreover, a modified Apelblat model gave an excellent match for predicting the extraction behavior of platinum(IV) at 1.2818% RMSD.
doi_str_mv 10.1016/j.jiec.2017.06.002
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Non-toxic diluents were studied and compared with toxic diluents for separation of platinum(IV) across hollow fiber supported liquid membrane. 91.41% extraction and 81% stripping of platinum(IV) was observed for sunflower oils at 328.15K. Overall mass transfer resistance (R) was 146.612×104s/cm. The separation process was exothermic (ΔHex0=−975.20kJ/mol) and spontaneous (ΔGex0=−326.447J/mol). The Ea of 1.673kJ/mol indicated that the diffusion of complex species across the liquid membrane controlled the mass transfer step. 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Non-toxic diluents were studied and compared with toxic diluents for separation of platinum(IV) across hollow fiber supported liquid membrane. 91.41% extraction and 81% stripping of platinum(IV) was observed for sunflower oils at 328.15K. Overall mass transfer resistance (R) was 146.612×104s/cm. The separation process was exothermic (ΔHex0=−975.20kJ/mol) and spontaneous (ΔGex0=−326.447J/mol). The Ea of 1.673kJ/mol indicated that the diffusion of complex species across the liquid membrane controlled the mass transfer step. 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Non-toxic diluents were studied and compared with toxic diluents for separation of platinum(IV) across hollow fiber supported liquid membrane. 91.41% extraction and 81% stripping of platinum(IV) was observed for sunflower oils at 328.15K. Overall mass transfer resistance (R) was 146.612×104s/cm. The separation process was exothermic (ΔHex0=−975.20kJ/mol) and spontaneous (ΔGex0=−326.447J/mol). The Ea of 1.673kJ/mol indicated that the diffusion of complex species across the liquid membrane controlled the mass transfer step. Moreover, a modified Apelblat model gave an excellent match for predicting the extraction behavior of platinum(IV) at 1.2818% RMSD.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jiec.2017.06.002</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0003-1348-1221</orcidid></addata></record>
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source ScienceDirect Freedom Collection
subjects HFSLM
Non-toxic diluents
Platinum(IV)
Sunflower oils
Thermodynamics
화학공학
title Separation of platinum(IV) across hollow fiber supported liquid membrane using non-toxic diluents: Mass transfer and thermodynamics
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