Novel aqueous chelating agents for catalytic oxidation of hydrogen sulfide to sulfur by air

被引：5

作者：

Hua, Guoxiong ^{[1
]}

Zhang, Qingzhi ^{[1
]}

McManus, Derek ^{[2
]}

Slawin, Alex M. Z. ^{[1
]}

Woollins, J. Derek ^{[1
]}

机构：

[1] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[2] US Filter Corp Inc, Plainfield, IL 60544 USA

来源：

MAIN GROUP CHEMISTRY | 2005年 / 4卷 / 02期

关键词：

Iron chelates; Hydrogen sulfide; Sulfur; Nitrilotriacetic acid (NTA); Phosphonomethyliminodiacetic acid (NTAP); Cyclic voltammogram; Catalytic oxidation;

D O I：

10.1080/10241220500349644

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Six phosphorus-containing analogues of nitrilotriacetic acid (NTA) or ethylenedinitrilotetraacetic acid (EDTA) form stable Fe(III) complexes which have been tested as catalysts for the oxidation of hydrogen sulfide. Ligand 4, phosphonomethyliminodiacetic acid (NTAP), was found to be comparable with NTA in efficiency of catalytic activity such as the conversion of hydrogen sulfide to sulfur, half-life of ligand, consumption of ligand per kg of sulfur product. A quantitative analytical method of phosphorus-containing ligand in the absorbed solution has been successfully established by applying P-31-{H-1} NMR.

引用

页码：157 / 175

页数：19

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