The effect of microwave on the crystallization process of magnesium carbonate from aqueous solutions

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Guo, Zhichao Han, Wenxiang Zhao, Wenli Li, Liye Wang, Baodong Xiao, Yongfeng Alopaeus, Ville 2020-02-03T09:01:21Z 2020-02-03T09:01:21Z 2018
dc.identifier.citation Guo , Z , Han , W , Zhao , W , Li , L , Wang , B , Xiao , Y & Alopaeus , V 2018 , ' The effect of microwave on the crystallization process of magnesium carbonate from aqueous solutions ' , Powder Technology , vol. 328 , 1 , pp. 358-366 . en
dc.identifier.issn 0032-5910
dc.identifier.other PURE UUID: 878bdf9f-0625-49c1-acf3-b2da2e277683
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract The effect of microwave on reactive crystallization is investigated with magnesium carbonate as the working substance. In the experiments, magnesium carbonate is precipitated by mixing aqueous magnesium sulfate and sodium carbonate solutions in a MSMPR crystallizer located in a microwave reactor. A population balance model along with crystallization kinetics is formulated to assess the influence of microwave energy input on nucleation, growth, agglomeration and breakage during crystallization process. A general high order moment method of classes (HMMC) framework is applied to solve the model numerically. The results show that crystallization kinetics parameters, including the nucleation rate constant (kn), the growth rate constant (kg), the exponent of growth rate (g) and the collision efficiency (Ψag) change significantly due to mass transfer enhancement in microwave field. Meanwhile, the exponent of nucleation (n) and the breakage rate constant (kbr) remain constant or only change slightly. It is further discovered that the crystal suspension attenuates the microwave effect during crystallization process. en
dc.format.extent 9
dc.format.extent 358-366
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier
dc.relation.ispartofseries Powder Technology en
dc.relation.ispartofseries Volume 328 en
dc.rights openAccess en
dc.subject.other 215 Chemical engineering en
dc.title The effect of microwave on the crystallization process of magnesium carbonate from aqueous solutions en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Tianjin University of Science & Technology
dc.contributor.department Chemical engineering
dc.contributor.department National Institute of Clean-and-Low-Carbon Energy
dc.contributor.department Department of Chemical and Metallurgical Engineering en
dc.subject.keyword 215 Chemical engineering
dc.identifier.urn URN:NBN:fi:aalto-202002032005
dc.identifier.doi 10.1016/j.powtec.2018.01.038
dc.type.version acceptedVersion

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