Preparation of monodispersed micaceous iron oxide pigment from pyrite cinders

被引：37
|
作者：
Zheng, Yajie [1 ]
Liu, Zhaocheng [1 ]
机构：
[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Hunan, Peoples R China
来源：
POWDER TECHNOLOGY | 2011年 / 207卷 / 1-3期
关键词：
Micaceous iron oxide; Pyrite cinders; alpha-Fe2O3; Hydrothermal process; Recycling;
D O I：
10.1016/j.powtec.2010.11.015
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, pyrite cinders are used as a second raw material for preparing micaceous iron oxide (MIO) pigment by leaching, precipitation and hydrothermal treatment. The optimal conditions for MIO synthesis, such as NaOH concentration, total iron concentration, reaction temperature and reaction time are investigated and discussed carefully, using pigment color and morphology as the major evaluation parameters. In addition, the synthesized products have been characterized by means of XRD and SEM/EDS. Under optimum conditions, the obtained MIO is uniform flake, metallic gray, and its mean particle size and aspect ratio are similar to 7.0 mu m and similar to 7.0. A scale-up experiment demonstrates its reproducibility. Besides, all the resulting products fulfill ISO 10601-2007, the standards of micaceous iron oxide pigments for paints. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：335 / 342
页数：8
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