文献类型：期刊文献

中文题名：五氧化二钒催化钾碱液吸收二氧化碳的机理

英文题名：CATALYTIC ACTIVITY OF VANADIUM PENTOXIDE FOR THE ABSORPTION OF CARBON DIOXIDE BY POTASSIUM CARBONATE SOLUTION

作者：乐清华[1];徐晋林[1];施亚钧[1]

机构：[1]华东化工学院化学工程研究所,上海200237

年份：1992

卷号：8

期号：6

起止页码：753

中文期刊名：物理化学学报

外文期刊名：Acta Physico-Chimica Sinica

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000207574600008)】；北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；PubMed;

语种：中文

中文关键词：氧化钒;碳酸钾;二氧化碳;吸收

外文关键词：Vanadic oxide;;Carbon dioxide;;Potassium carbonate;;Absorption;;Catalytic mechanism

摘要：从五氧化二钒(V_2O_5)的物理化学性质出发,研究了V_2O_5加快CO_2在钾碱液(K_2CO_3)中的吸收速率的化学作用机理。实验证明:当9The chemical mechanism that vanadium pentoxide, as an additive, enhances the absorption rate of carbon dioxide in aqueous potassium carbonate solution has beensuggested Experiments proved that V_2O_5 exists as V_2O_7^(4-) and V_4O_(12)^(4-) in the carbonate solu-tion, as pH value is in the range of 9--12. The catalytic action of V_2O_5 is only re-lated to the concentration of V_2O_7^(4-) and pH value of the solution, the optimum rangeof pH value is 10.6 to 10.8, and the quantity of V_2O_5 added has to be restricted inorder to maintain the optimized pH range.