Production of SrCO3 and (NH4)2SO4 by the dry mechanochemical processing of celestite

被引：22

作者：

Bingol, Deniz ^{[1
]}

Aydogan, Salih ^{[2
]}

Bozbas, Seda Karayunlu ^{[1
]}

机构：

[1] Kocaeli Univ, Dept Chem, TR-41380 Kocaeli, Turkey

[2] Selcuk Univ, Min Engn Dept, TR-42075 Konya, Turkey

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2012年 / 18卷 / 02期

关键词：

Chemical processes; Ion exchange; Leaching; Optimization; Conversion; Celestite; ALKALINE HYDROTHERMAL CONDITIONS; SODIUM-CARBONATE SOLUTION; MINERAL CELESTITE; CONVERSION; PRECIPITATION; STRONTIANITE; SRSO4; WATER;

D O I：

10.1016/j.jiec.2011.11.145

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A SrCO3 formation starting from activated SrSO4-(NH4)(2)CO3 mixtures as a result of dry mechanochemical treatment for 180 min in a planetary ball mill of celestite together with (NH4)(2)CO3 was studied. The phases that formed during milling were successfully characterized by X-ray diffraction measurement (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and chemical analysis. A novel hydrometallurgical process to convert both SrCO3 (product) and (NH4)(2)SO4 (by-product) from celestite via dry mechanochemical conversion with (NH4)(2)CO3 was developed for the first time in this work. Under optimum conditions, the conversion of SrCO3 was 98.1%. The (NH4)(2)SO4 leach solution was crystallized. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：834 / 838

页数：5

共 21 条

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