KINETICS OF CALCIUM CARBONATE INTERACTION WITH OXYETHYLIDENEDIPHOS-PHONIC ACID SOLUTIONS

被引：0
|
作者：
Sobolev, A. E. [1 ]
Lutsik, V. I. [1 ]
Turkovskaya, O. V. [1 ]
机构：
[1] Tver State Tech Univ, Dept Chem, Tver, Russia
来源：
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA | 2012年 / 55卷 / 01期
关键词：
dissolution kinetics; calcium carbonate; oxyethylidenediphosphonic acid; rotating disk method;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics of calcium carbonate interaction with oxyethylidenediphosphonic acid solutions was studied using the rotating disk method. The dependences of the specific rate of CaCO3 dissolution on acid concentration, pH value of solution, temperature, disk rotation frequency, and duration of measurements were determined. According to the obtained kinetic model, the process is diffusion-controlled. The limiting stage is diffusion of hydrogen ions to the mineral surface.
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页码：42 / +
页数：6
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