节点文献
脱硫过程中VO2+与栲胶络合位点的研究
Research on VO2+-Tannin Extract Coordination Sites in Desulfurization
【摘要】 通过测定苯酚、对苯二酚、间苯二酚、邻苯二酚、水杨酸和没食子酸等小分子模型化合物与硫酸氧钒混合溶液的吸光度,分析得出了四价钒离子只与栲胶分子结构中邻位酚羟基发生络合,而不与羧基络合;并通过邻苯二酚、没食子酸、单宁酸及橡椀栲胶的加质子常数和离解常数进一步说明了这一结论的合理性。
【Abstract】 The absorbance of six modal compounds such as phenol,resorcinol(RES),p-hydroquinone(HYD),pyrocatechol(CAT),gallic acid,salicylic acid(Sal) and VO2+ were determinated in water.The results expressed that VO2+ was only coordinated with adjacent phenolic-OH groups,and the rationality of such conclusion was promoted by the protonation constants and dissociation constants of pyrocatechol,gallic acid,tannin acid and tannin extract.
【关键词】 栲胶脱硫;
钒离子;
络合反应;
加质子常数;
【Key words】 tannin extract desulfurization; VO2+; coordination reaction; protonation constant;
【Key words】 tannin extract desulfurization; VO2+; coordination reaction; protonation constant;
【基金】 山西省科技攻关项目(20070329039)
- 【文献出处】 太原科技大学学报 ,Journal of Taiyuan University of Science and Technology , 编辑部邮箱 ,2011年01期
- 【分类号】TQ330.1
- 【被引频次】3
- 【下载频次】129