INFLUENCE OF CALCIUM AND MAGNESIUM IONS ON DISPERSION OF FINE SiO_2 AND Fe_2O_3 PARTICLES

机译：钙镁离子对精细SiO_2和Fe_2O_3颗粒分散的影响

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Influence of calcium and magnesium ions on dispersion of fine SiO_2 and Fe_2O_3 particles in aqueous solution and elimination of the influence have been studied The mechanism of the aggregation and dispersion behaviors were discussed based on analyzing the measured data of adsorption of ions and potential of the fine particles. It was found that calcium and magnesium ions could induce aggregation of the fine SiO_2 and Fe_2O_3 particles and destroyed the stabilization of well-dispersed suspension due to a charge neutralization caused by the adsorption of CaOH~+ and Mg(OH)_(2(s)) etc.. Addition of AT-802 would eliminate this influence by making zeta potential of those particles more negative even though the concentration of the ions is up to 10~(-3)M.

机译：研究了钙镁离子对SiO_2和Fe_2O_3微粒在水溶液中分散的影响并消除了其影响。在分析离子吸附和细电势的测量数据的基础上，探讨了聚集和分散行为的机理。粒子。发现钙和镁离子可引起细小的SiO_2和Fe_2O_3颗粒的聚集并破坏CaOH〜+和Mg（OH）_（2（s即使离子浓度高达10〜（-3）M，AT-802的加入也会通过使这些粒子的zeta电位更负来消除这种影响。

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《Proceedings '96 China-Japan symjposium on particuology》|1996年|P.19|共1页
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Qixue Fang; Wenling Jia; Shouci Lu;
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原文格式 PDF
正文语种
中图分类粉末技术;
关键词
fine SiO_2; Fe_2O_3 particles; calcium and magnesium ions; dispersion;

机译：SiO_2细颗粒; Fe_2O_3颗粒;钙镁离子;分散;

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INFLUENCE OF CALCIUM AND MAGNESIUM IONS ON DISPERSION OF FINE SiO_2 AND Fe_2O_3 PARTICLES

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