Utilization of Fenton oxidation approach in wet phosphoric acid process for mitigating foam generation

Mao, Y; Zhang, W; Li, H; Chen, Q; Kasomo, RM; Luo, H; Song, S

Utilization of Fenton oxidation approach in wet phosphoric acid process for mitigating foam generation

Mao, Y Zhang, W Li, H Chen, Q Kasomo, RM Luo, H Song, S

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Colloids and Surfaces A Physicochemical and Engineering Aspects, 2022, 648, pp. 129297
Issue Date:: 2022-09

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Field	Value	Language
dc.contributor.author	Mao, Y
dc.contributor.author	Zhang, W
dc.contributor.author	Li, H
dc.contributor.author	Chen, Q
dc.contributor.author	Kasomo, RM
dc.contributor.author	Luo, H
dc.contributor.author	Song, S
dc.date.accessioned	2023-04-10T21:55:01Z
dc.date.available	2023-04-10T21:55:01Z
dc.date.issued	2022-09
dc.identifier.citation	Colloids and Surfaces A Physicochemical and Engineering Aspects, 2022, 648, pp. 129297
dc.identifier.issn	0927-7757
dc.identifier.uri	http://hdl.handle.net/10453/169397
dc.description.abstract	Significant amounts of foam generated during the production of phosphoric acid would severely occupy the head space in the reactors, thereby reducing output capacity dramatically. Here, we first proposed a green and clean approach based on Fenton oxidation theory to mitigate the generation of foam. The effect of H2O2 dosage, FeSO4 dosage, and pH value on the defoaming performance were investigated systematically. Moreover, the defoaming performance between Fenton oxidation process and traditional defoamer were compared and the defoaming mechanism was described with the help of XRD analyses. The results obtained from the Fenton oxidation process demonstrate that the use of H2O2 in conjunction with FeSO4 are beneficial to mitigating the foam generation, and the defoaming performance is positively correlated to the dosage. Furthermore, Fenton oxidation process outperforms than that of traditional defoamer in terms of reducing foam generation. The defoaming mechanism is ascribed to the fact that the organic substrates existing on the phosphate concentrate surface could be completely decomposed and the soluble carbonate minerals were prone to being dissolved during the regulation of pH value, thereby inhibiting the production of CO2 gas. This work is helpful in providing guidance for utilizing a green and clean approach based on advanced oxidation theory to mitigate the foam generation during the wet phosphoric acid process. More importantly, it provides a theoretical basis for optimizing this type of processing methods.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Colloids and Surfaces A Physicochemical and Engineering Aspects
dc.relation.isbasedon	10.1016/j.colsurfa.2022.129297
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Physics
dc.title	Utilization of Fenton oxidation approach in wet phosphoric acid process for mitigating foam generation
dc.type	Journal Article
utslib.citation.volume	648
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-10T21:54:50Z
pubs.publication-status	Published
pubs.volume	648

Abstract:

Significant amounts of foam generated during the production of phosphoric acid would severely occupy the head space in the reactors, thereby reducing output capacity dramatically. Here, we first proposed a green and clean approach based on Fenton oxidation theory to mitigate the generation of foam. The effect of H2O2 dosage, FeSO4 dosage, and pH value on the defoaming performance were investigated systematically. Moreover, the defoaming performance between Fenton oxidation process and traditional defoamer were compared and the defoaming mechanism was described with the help of XRD analyses. The results obtained from the Fenton oxidation process demonstrate that the use of H2O2 in conjunction with FeSO4 are beneficial to mitigating the foam generation, and the defoaming performance is positively correlated to the dosage. Furthermore, Fenton oxidation process outperforms than that of traditional defoamer in terms of reducing foam generation. The defoaming mechanism is ascribed to the fact that the organic substrates existing on the phosphate concentrate surface could be completely decomposed and the soluble carbonate minerals were prone to being dissolved during the regulation of pH value, thereby inhibiting the production of CO2 gas. This work is helpful in providing guidance for utilizing a green and clean approach based on advanced oxidation theory to mitigate the foam generation during the wet phosphoric acid process. More importantly, it provides a theoretical basis for optimizing this type of processing methods.

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http://hdl.handle.net/10453/169397