Imperial College London
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Professor Jerry Heng

Faculty of Engineering, Department of Chemical Engineering

Professor in Particle Technology
 
 
 
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Contact

 

+44 (0)20 7594 0784jerry.heng

 
 
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Location

 

208ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lapidot:2016:10.1021/acs.iecr.6b02914,
author = {Lapidot, T and Heng, JYY},
doi = {10.1021/acs.iecr.6b02914},
journal = {Industrial & Engineering Chemistry Research},
pages = {11475--11479},
title = {Functionalized mesoporous silica for the control of crystallization fouling},
url = {http://dx.doi.org/10.1021/acs.iecr.6b02914},
volume = {55},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A seeding study to test the effectiveness of nanoparticles in mitigating crystallization fouling is reported. The effect of functionalized mesoporous silica particles on calcium sulfate crystallization was studied through a series of batch crystallization experiments. Tested surface chemistries include nonfunctionalized silica (hydrophilic), methyl (hydrophobic) propyl amine (basic), propyl sulfonic acid (acidic), and triaminetetraacitic acid (TAAcOH, chelating). Crystallization was tracked online using electrical conductivity to determine concentration as a function of time, which was used to calculate induction time and growth rate. At a loading of 0.1 mg/gsol, amine functionalized particles were found to be the most effective at reducing induction time, while TAAcOH particles were found to significantly increase induction time. The efficacy of TAAcOH particles was further tested at various loadings and was found to increase induction time 6-fold at a loading of 0.5 mg/gsol. Despite having a profound effect on induction time, growth rates remained relatively constant for all surface chemistries and loadings. Here, we show that the seed surface chemistry can play a major role in the control of calcium sulfate crystallization.
AU  - Lapidot,T
AU  - Heng,JYY
DO  - 10.1021/acs.iecr.6b02914
EP  - 11479
PY  - 2016///
SN  - 1520-5045
SP  - 11475
TI  - Functionalized mesoporous silica for the control of crystallization fouling
T2  - Industrial & Engineering Chemistry Research
UR  - http://dx.doi.org/10.1021/acs.iecr.6b02914
UR  - http://hdl.handle.net/10044/1/43319
VL  - 55
ER  -
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