title: Effect of hydraulic activity on crystallization of precipitated calcium carbonate (PCC) for eco-friendly paper.
abstract: Wt% of aragonite, a CaCO(3) polymorph, increased with higher hydraulic activity ( degrees C) of limestone in precipitated calcium carbonate (PCC) from the lime-soda process (Ca(OH)(2)-NaOH-Na(2)CO(3)). Only calcite, the most stable polymorph, was crystallized at hydraulic activity under 10 degrees C, whereas aragonite also started to crystallize over 10 degrees 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.
authors.affiliation: Department of Systems Innovation, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo Bunkyo-ku 113-8656 Tokyo, Japan.
authors.forename: Jung-Ah
authors.initials: JA
authors.lastname: Kim
authors.affiliation: Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
authors.forename: Gi-Chun
authors.initials: GC
authors.lastname: Han
authors.affiliation: Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
authors.forename: Mihee
authors.initials: M
authors.lastname: Lim
authors.affiliation: Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
authors.forename: Kwang-Suk
authors.initials: KS
authors.lastname: You
authors.affiliation: Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
authors.forename: Miyoung
authors.initials: M
authors.lastname: Ryu
authors.affiliation: Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
authors.forename: Ji-Whan
authors.initials: JW
authors.lastname: Ahn
authors.affiliation: Department of Systems Innovation, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo Bunkyo-ku 113-8656 Tokyo, Japan.
authors.forename: Toyohisa
authors.identifier: 0000-0002-2697-6867
authors.initials: T
authors.lastname: Fujita
authors.affiliation: Department of Material Science and Engineering, College of Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Hwan
authors.initials: H
authors.lastname: Kim
mesh_terms: D002119:Calcium Carbonate / Q000737:chemistry*; D017610:Calcium Compounds / Q000737:chemistry; D003460:Crystallization; D007221:Industry; D010087:Oxides / Q000737:chemistry; D010209:Paper; D013696:Temperature
chemical_list: D017610:Calcium Compounds; D010087:Oxides; C016538:lime; D002119:Calcium Carbonate