Transport-Limited Growth of Flow-Driven Rare-Earth Silicate Tubes

The injection of rare-earth metal salt solutions into sodium silicate solution results in vertically growing tubular precipitate structures. At low input concentrations reaction kinetics is the rate-detemining process, leading to linear growth rates independent of injection rates. At higher concentr...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Farkas Panna E.
Lantos Emese
Horváth Dezső
Tóth Ágota
Dokumentumtípus: Cikk
Megjelent: 2024
Sorozat:CHEMSYSTEMSCHEM 6 No. 6
Tárgyszavak:
doi:10.1002/syst.202400053

mtmt:35633848
Online Access:http://publicatio.bibl.u-szeged.hu/35347
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520 3 |a The injection of rare-earth metal salt solutions into sodium silicate solution results in vertically growing tubular precipitate structures. At low input concentrations reaction kinetics is the rate-detemining process, leading to linear growth rates independent of injection rates. At higher concentrations, flow drives the precipitate growth, characterized by jetting mechanism. Among the studied rare-earth metal silicates, dysprosium silicate is found to have the most rigid structure with visible growth even at higher injection rates. The outer surface of the hollow tubes is smooth, on which rare-earth hydroxide - based on the result of the energy dispersive X-ray spectroscopy measurements - aggregates into globules. 
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700 0 1 |a Horváth Dezső  |e aut 
700 0 1 |a Tóth Ágota  |e aut 
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