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Correction: Zhou, Z.-B. et al. Receptor-Mediated Vascular Smooth Muscle Migration Induced by LPA Involves p38 Mitogen-Activated Protein Kinase Pathway Activation. Int. J. Mol. Sci. 2009, 10, 3194-3208
Int. J. Mol. Sci. 2009, 10(11), 4954-4962; doi:10.3390/ijms10114954
Article

Effect of Hydraulic Activity on Crystallization of Precipitated Calcium Carbonate (PCC) for Eco-Friendly Paper

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1 Department of Systems Innovation, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo Bunkyo–ku 113-8656 Tokyo, Japan 2 Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea 3 Department of Material Science and Engineering, College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
* Author to whom correspondence should be addressed.
Received: 29 October 2009 / Revised: 8 November 2009 / Accepted: 11 November 2009 / Published: 11 November 2009
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

Wt% of aragonite, a CaCO3 polymorph, increased with higher hydraulic activity (°C) of limestone in precipitated calcium carbonate (PCC) from the lime-soda process (Ca(OH)2-NaOH-Na2CO3). Only calcite, the most stable polymorph, was crystallized at hydraulic activity under 10 °C, whereas aragonite also started to crystallize over 10 °C. The crystallization of PCC is more dependent on the hydraulic activity of limestone than CaO content, a factor commonly used to classify limestone ores according to quality. The results could be effectively applied to the determination of polymorphs in synthetic PCC for eco-friendly paper manufacture.
Keywords: hydraulic activity; precipitated calcium carbonate (PCC); crystallization; calcite; aragonite; limestone; eco-friendly paper hydraulic activity; precipitated calcium carbonate (PCC); crystallization; calcite; aragonite; limestone; eco-friendly paper
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kim, J.-A.; Han, G.-C.; Lim, M.; You, K.-S.; Ryu, M.; Ahn, J.-W.; Fujita, T.; Kim, H. Effect of Hydraulic Activity on Crystallization of Precipitated Calcium Carbonate (PCC) for Eco-Friendly Paper. Int. J. Mol. Sci. 2009, 10, 4954-4962.

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