Investigation of the initial period of sulphate scale formation - Part 1. Kinetics and mechanism of calcium sulphate surface nucleation at its crystallization on a heat-exchange surface

被引：40

作者：

Linnikov, OD ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620219, Russia

来源：

DESALINATION | 1999年 / 122卷 / 01期

关键词：

calcium sulphate; heated metal surface; kinetics; crystals; nucleation; scale;

D O I：

10.1016/S0011-9164(99)00023-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Crystallization of calcium sulphate on electrolytic solutions on a heated metal surface was studied in the. laboratory. Using a microscopic method, studies concentrated on the initial period of sulphate scale formation (up to the formation of a compact monolith layer of calcium sulphate on a metal surface). The kinetics and mechanism of nucleation of calcium sulphate crystals were investigated. The activation energy of nucleation and efficient specific surface energy were determined. The effect of a temperature gradient in a solution at the metal surface and its roughness on nucleation of calcium sulphate crystals was estimated.

引用

页码：1 / 14

页数：14

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