Comparative study of zirconia based powders prepared by co-precipitation and in a microreactor with impinging swirled flows

Fedorenko, N.Ju; Абиев, Р. Ш.; Kudryashova, Yu. S.; Уголков, В. Л.; Хамова, Т. В.; Mjakin, S. V.; Здравков, А. В.; Калинина, М. В.; Шилова, О. А.

doi:10.1016/j.ceramint.2022.01.174

Cited by 15 publications

(3 citation statements)

References 13 publications

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“…In the work [23] the comparative synthesis of mesoporous nanosized xerogels of ZrO 2 -Y 2 O 3 (97% mol. ZrO 2 -3% mol.…”

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

“…The details of the analysis of the powder are presented in [23]. Acid-base characteristics of xerogeles were examined by use of a pH meter.…”

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

“…Thus, xerogels obtained using the microreactor with impinging swirled flows (micro-VJA-ISF-CC) have a lower level of agglomeration compared to xerogels obtained by coprecipitation. It was found in [23] that xerogel obtained in micro-VJA-ISF-CC features a reduced agglomeration of the particles that correlates with their lower surface acidity compared with the co-precipitated xerogel, reflecting a decreased content of active surface centers.…”

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

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Micromixing and Co-Precipitation in Continuous Microreactors with Swirled Flows and Microreactors with Impinging Swirled Flows

et al. 2023

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One of the promising methods for process intensification for micromixing, co-precipitation, and crystallization in continuous reactors is the use of vigorous vortices. A combination of the high intensity of the kinetic energy input with the small volume of the micromixing volume allows to concentrate the energy dissipation rate up to 104 W/kg and more. As the embodiment of such an idea, four new types of microreactors with intensively swirled flows were created and studied as a tool for continuous co-precipitation and crystallization. A correlation between residence time and segregation index was found: the smaller residence time, the higher energy dissipation rate and better quality of micromixing. A method for the synthesis of oxides of a number of transition metals in microreactors with intensively swirled flows with subsequent thermal treatment of co-precipitation products has been developed. This method was used to obtain ensembles of nanosized particles of zirconium oxides, as well as calcium and strontium fluorides. In comparison with the currently widely used hydro- and solvothermal methods, the proposed method has high productivity (around 10 m3/day for lab scale device), can significantly reduce the duration of the process, provides low energy consumption, does not require a large number of labor-intensive operations, is technologically advanced and easily scalable.

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“…In the work [23] the comparative synthesis of mesoporous nanosized xerogels of ZrO 2 -Y 2 O 3 (97% mol. ZrO 2 -3% mol.…”

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

“…The details of the analysis of the powder are presented in [23]. Acid-base characteristics of xerogeles were examined by use of a pH meter.…”

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

Section: Synthesis Of Zirconium Dioxide Based Powders In a Microreact...mentioning

confidence: 99%

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Micromixing and Co-Precipitation in Continuous Microreactors with Swirled Flows and Microreactors with Impinging Swirled Flows

et al. 2023

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Pyrochlore phase in the Bi2O3–Fe2O3–WO3–(H2O) system: Physicochemical and hydrodynamic aspects of its production using a microreactor with intensively swirled flows

Lomakin

Проскурина

Абиев

et al. 2023

Advanced Powder Technology

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Stabilization of zirconia nanoparticles by collagen protein and calcium carbonate extracted from eggshell and its biodegradation, radical scavenging and mineralization activity

Akram¹,

Bashir²,

Majid

et al. 2023

Arabian Journal of Chemistry

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Comparative study of zirconia based powders prepared by co-precipitation and in a microreactor with impinging swirled flows

Cited by 15 publications

References 13 publications

Micromixing and Co-Precipitation in Continuous Microreactors with Swirled Flows and Microreactors with Impinging Swirled Flows

Micromixing and Co-Precipitation in Continuous Microreactors with Swirled Flows and Microreactors with Impinging Swirled Flows

Pyrochlore phase in the Bi2O3–Fe2O3–WO3–(H2O) system: Physicochemical and hydrodynamic aspects of its production using a microreactor with intensively swirled flows

Stabilization of zirconia nanoparticles by collagen protein and calcium carbonate extracted from eggshell and its biodegradation, radical scavenging and mineralization activity

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