Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
Scale-up synthesis of zinc borate from the reaction of zinc oxide and boric acid in aqueous medium
Date
2010-11-01
Author
Kilinc, Mert
Cakal, Gaye O.
Yesil, Sertan
Bayram, Göknur
EROĞLU, İNCİ
ÖZKAR, SAİM
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
15
views
0
downloads
Cite This
Synthesis of zinc borate was conducted in a laboratory and a pilot scale batch reactor to see the influence of process variables on the reaction parameters and the final product, 2ZnO center dot 3B(2)O(3)center dot 3.5H(2)O. Effects of stirring speed, presence of baffles, amount of seed, particle size and purity of zinc oxide, and mole ratio of H3BO3:ZnO on the zinc borate formation reaction were examined at a constant temperature of 85 degrees C in a laboratory (4 L) and a pilot scale (85 L) reactor. Products obtained from the reaction in both reactors were characterized by chemical analysis, X-ray diffraction, particle size distribution analysis, thermal gravimetric analysis and scanning electron microscopy. The kinetic data for the zinc borate production reaction was fit by using the logistic model. The results revealed that the specific reaction rate, a model parameter, decreases with increase in particle size of zinc oxide and the presence of baffles, but increases with increase in stirring speed and purity of zinc oxide; however, it is unaffected with the changes in the amount of seed and reactants ratio. The reaction completion time is unaffected by scaling-up.
Subject Keywords
Crystallites
,
Growth model
,
Growth from solutions
,
Seed crystals
,
Borates
,
Zinc compounds
URI
https://hdl.handle.net/11511/41990
Journal
JOURNAL OF CRYSTAL GROWTH
DOI
https://doi.org/10.1016/j.jcrysgro.2010.05.048
Collections
Department of Chemical Engineering, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Kilinc, G. O. Cakal, S. Yesil, G. Bayram, İ. EROĞLU, and S. ÖZKAR, “Scale-up synthesis of zinc borate from the reaction of zinc oxide and boric acid in aqueous medium,”
JOURNAL OF CRYSTAL GROWTH
, vol. 312, no. 22, pp. 3361–3366, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41990.