南京化工大学学报(自然科学版)2001，Vol.23Issue(1)：1-5,5.
白云石晶体的有序度与去白云石化反应
ORDERED INDEX AND DEDOLOMITIZATION OF DOLOMITE CRYSTALS
邓敏 1唐明述 1钱光人2
作者信息
- 1. 南京化工大学材料科学与工程学院,
- 2. 西南工学院,
- 折叠
摘要
Abstract
The ordered index of dolomite crystals in dolomitic rocks with differe nt textures and compositions has been evaluated. The influence of the ordered in dex on dynamic of dedolomitization reaction were carried out by determining of r eaction degree of dolomite in suspended powdered dolomite－H2O system. It was est ablished that the ordered index of dolomite crystals is the smallest in dolomicr ites, moderate in dolomitic micrite limestones, stripped dolomitic micrite limes tones, dolomitic silt micrite limestones and dolomitic oosparites, and the large st in leopard dolomitic micrite limestones and crystalline dolostone. The dedolo mitization reaction of dolomite crystals with low ordered index occupies low act ive energy of diffusion, interfacial chemical reaction as well as nucleation and growth. Therefore, lowly ordered dolomite crystals show high reactivity in alka li solutions. Temperature tends to diminish the influence of ordered index on de dolomitization reaction of dolomite crystals.关键词
白云石晶体/有序度/去白云石化反应分类
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邓敏,唐明述,钱光人..白云石晶体的有序度与去白云石化反应[J].南京化工大学学报(自然科学版),2001,23(1):1-5,5.
