Mechanochemistry of silica on jet milling

被引：26

作者：

Palaniandy, Samayamutthirian ^{[1
]}

Azizli, Khairun Azizi Mohd ^{[1
]}

Hussin, Hashim ^{[1
]}

Hashim, Syed Fuad Saiyid ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2008年 / 205卷 / 1-3期

关键词：

mechanochemical effect; jet mill; Silica;

D O I：

10.1016/j.jmatprotec.2007.11.086

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fine grinding process of silica was carried out in a jet mill by varying the operational parameters such as feed rate, classifier rotational speed and grinding pressure. The size reduction and mechanochemical effect of silica take place simultaneously as the jet mill is an energy intensive grinding mill. The minimum particle size obtained was 3.15 mu m with span value of 1.30 and crystallinity values of ground product ranging from 71% to 91%. The crystallite size of the ground silica ranged from 22.71 nm to 35.54 nm whilst the lattice strain ranged from 0.024 to 0.038. The results showed that mechanochemical effect of ground silica was affected by the operating parameters of the jet mill. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：119 / 127

页数：9

共 34 条

[11] Mechanochemistry:: an overview [J].

Fernández-Bertran, JF .

PURE AND APPLIED CHEMISTRY, 1999, 71 (04) :581-586

[12] On the analysis of fine wet grinding in a batch ball mill [J].

Frances, C ;

Laguerie, C ;

Mazzarotta, B ;

Veccia, T .

CHEMICAL ENGINEERING JOURNAL, 1996, 63 (03) :141-147

[13] Talc grinding in an opposed air jet mill: start-up, product quality and production rate optimization [J].

Godet-Morand, L ;

Chamayou, A ;

Dodds, J .

POWDER TECHNOLOGY, 2002, 128 (2-3) :306-313

[14] Study of the mechano-chemical transformation of goethite to hematite by TEM and XRD [J].

González, G ;

Sagarzazu, A ;

Villalba, R .

MATERIALS RESEARCH BULLETIN, 2000, 35 (14-15) :2295-2308

[15] Slurry rheology in wet ultrafine grinding of industrial minerals: a review [J].

He, MZ ;

Wang, YM ;

Forssberg, E .

POWDER TECHNOLOGY, 2004, 147 (1-3) :94-112

[16] Thermal behaviors of mechanically activated pyrites by thermogravimetry (TG) [J].

Hu, HP ;

Chen, QY ;

Yin, ZL ;

Zhang, PM .

THERMOCHIMICA ACTA, 2003, 398 (1-2) :233-240

[17]

Juh'asz AZ., 1990, MECH ACTIVATION MINE

[18] PROPERTIES OF SIC, SI3N4 AND SIO2 CERAMIC POWDERS PRODUCED BY VIBRATION BALL MILLING [J].

KANNO, Y .

POWDER TECHNOLOGY, 1985, 44 (01) :93-97

[19] Application of dry grinding to reduction in transformation temperature of aluminum hydroxides [J].

Kano, J ;

Saeki, S ;

Saito, F ;

Tanjo, M ;

Yamazaki, S .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2000, 60 (02) :91-100

[20] A grindability test to study the influence of material processing on impact behaviour [J].

Lecoq, O ;

Guigon, P ;

Pons, MN .

POWDER TECHNOLOGY, 1999, 105 (1-3) :21-29

← 1 2 3 4 →