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

Guoxiong Hua; Qingzhi Zhang; Derek McManus; Alex M. Z. Slawin; J. Derek Woollins; Alexandra Martha Zoya Slawin

doi:10.1080/10241220500349644

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

Guoxiong Hua, Qingzhi Zhang, Derek McManus, Alex M. Z. Slawin, J. Derek Woollins, Alexandra Martha Zoya Slawin

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	157-175
Number of pages	19
Journal	Main Group Chemistry
Volume	4
Issue number	2
DOIs	https://doi.org/10.1080/10241220500349644
Publication status	Published - 2005

Keywords

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

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title = "Novel aqueous chelating agents for catalytic oxidation of hydrogen sulfide to sulfur by air",

abstract = "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.",

keywords = "Iron chelates, Hydrogen sulfide, Sulfur, Nitrilotriacetic acid (NTA), Phosphonomethyliminodiacetic acid (NTAP), Cyclic voltammogram, Catalytic oxidation",

author = "Guoxiong Hua and Qingzhi Zhang and Derek McManus and Slawin, {Alex M. Z.} and Woollins, {J. Derek} and Slawin, {Alexandra Martha Zoya}",

year = "2005",

doi = "10.1080/10241220500349644",

language = "English",

volume = "4",

pages = "157--175",

journal = "Main Group Chemistry",

issn = "1024-1221",

publisher = "IOS Press",

number = "2",

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TY - JOUR

T1 - Novel aqueous chelating agents for catalytic oxidation of hydrogen sulfide to sulfur by air

AU - Hua, Guoxiong

AU - Zhang, Qingzhi

AU - McManus, Derek

AU - Slawin, Alex M. Z.

AU - Woollins, J. Derek

AU - Slawin, Alexandra Martha Zoya

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

KW - Iron chelates

KW - Hydrogen sulfide

KW - Sulfur

KW - Nitrilotriacetic acid (NTA)

KW - Phosphonomethyliminodiacetic acid (NTAP)

KW - Cyclic voltammogram

KW - Catalytic oxidation

U2 - 10.1080/10241220500349644

DO - 10.1080/10241220500349644

M3 - Article

SN - 1024-1221

VL - 4

SP - 157

EP - 175

JO - Main Group Chemistry

JF - Main Group Chemistry

IS - 2

ER -

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

Abstract

Keywords

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