Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-2048
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dc.contributor.authorHochstrasser, Martin-
dc.contributor.authorJussen, Daniel-
dc.contributor.authorRiedlberger, Peter-
dc.date.accessioned2018-08-17T09:42:54Z-
dc.date.available2018-08-17T09:42:54Z-
dc.date.issued2017-
dc.identifier.issn0255-2701de_CH
dc.identifier.issn1873-3204de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/9144-
dc.description.abstractThe use of continuous flow microreactors offers an interesting approach among the process intensification tools available. Fouling in a microreactor during synthesis of industrially relevant nanoparticles was investigated. In order to achieve this, microscale synthesis of phosphated TiO2 nanoparticles from titanium(IV) isopropoxide (TTIP) and titanium(IV) butoxide (TBUT) was employed. A continuous three step process, consisting of hydrolysis of the respective alkoxide, phosphate modification and precipitation was developed. The resulting catalyst was characterized by means of nitrogen adsorption, dynamic light scattering and SEM/EDX. It was observed that TTIP resulted in massive fouling, while a stable process was possible with TBUT. This was related to the nucleation time of the particles. The particle size directly after the critical hydrolysis step was investigated. The particles formed with TTIP as a precursor (3.4 nm) were larger than those obtained from TBUT (2.4 nm). Diffusion based reactant concentration gradients within the multilamellar micromixer were calculated, and the corresponding Damköhler numbers for mixing were estimated to be 2.6∙10^-3 for TBUT and 3.5∙10^-2 for TTIP respectively. These numbers highlight the influence of incomplete mixing on fouling for TTIP as a precursor. Thus, our work demonstrates the necessity to consider the reaction kinetics during process intensification by miniaturization.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofChemical Engineering and Processing: Process Intensificationde_CH
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/de_CH
dc.subjectTiO2 nanoparticle synthesisde_CH
dc.subjectFouling remediationde_CH
dc.subjectMicromixing and micro reactionde_CH
dc.subjectProcess intensificationde_CH
dc.subject.ddc660: Technische Chemiede_CH
dc.titleTowards process intensification : remediation of fouling in continuous microscale synthesis of phosphated TiO2de_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Chemie und Biotechnologie (ICBT)de_CH
dc.identifier.doi10.21256/zhaw-2048-
dc.identifier.doi10.1016/j.cep.2017.07.024de_CH
zhaw.funding.euinfo:eu-repo/grantAgreement/EC/H2020/680565//Intensified by Design® for the intensification of processes involving solids handling/IbDde_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end23de_CH
zhaw.pages.start15de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume121de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedChemieingenieurwesende_CH
Appears in collections:Publikationen Life Sciences und Facility Management

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Hochstrasser, M., Jussen, D., & Riedlberger, P. (2017). Towards process intensification : remediation of fouling in continuous microscale synthesis of phosphated TiO2. Chemical Engineering and Processing: Process Intensification, 121, 15–23. https://doi.org/10.21256/zhaw-2048
Hochstrasser, M., Jussen, D. and Riedlberger, P. (2017) ‘Towards process intensification : remediation of fouling in continuous microscale synthesis of phosphated TiO2’, Chemical Engineering and Processing: Process Intensification, 121, pp. 15–23. Available at: https://doi.org/10.21256/zhaw-2048.
M. Hochstrasser, D. Jussen, and P. Riedlberger, “Towards process intensification : remediation of fouling in continuous microscale synthesis of phosphated TiO2,” Chemical Engineering and Processing: Process Intensification, vol. 121, pp. 15–23, 2017, doi: 10.21256/zhaw-2048.
HOCHSTRASSER, Martin, Daniel JUSSEN und Peter RIEDLBERGER, 2017. Towards process intensification : remediation of fouling in continuous microscale synthesis of phosphated TiO2. Chemical Engineering and Processing: Process Intensification. 2017. Bd. 121, S. 15–23. DOI 10.21256/zhaw-2048
Hochstrasser, Martin, Daniel Jussen, and Peter Riedlberger. 2017. “Towards Process Intensification : Remediation of Fouling in Continuous Microscale Synthesis of Phosphated TiO2.” Chemical Engineering and Processing: Process Intensification 121: 15–23. https://doi.org/10.21256/zhaw-2048.
Hochstrasser, Martin, et al. “Towards Process Intensification : Remediation of Fouling in Continuous Microscale Synthesis of Phosphated TiO2.” Chemical Engineering and Processing: Process Intensification, vol. 121, 2017, pp. 15–23, https://doi.org/10.21256/zhaw-2048.


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