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Title: Determination of total sulfur by ion chromatography following peroxide oxidation in spent caustic from the chemical cleaning of coal

Abstract

Total sulfur in samples of spent caustic arising from the chemical cleaning of coal has been determined by ion chromatography after oxidation of all sulfur species to sulfate. Oxidation with hydrogen peroxide first under basic conditions and subsequently under strongly acidic conditions was required for quantitative conversion of all sulfur species to sulfate. The effects of pH, sample size, and time of oxidation have been studied. The subsequent determination of sulfate by ion chromatography was straightforward, using well-established procedures. The results for total sulfur were reproducible, and the accuracy, based on total sulfur balance, was good. Previously low material balances for total sulfur have been corrected by this modified procedure to acceptable values. 9 references, 3 tables.

Authors:
; ;
Publication Date:
Research Org.:
Ames Lab., IA
OSTI Identifier:
6322740
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Journal Article
Journal Name:
Anal. Chem.; (United States)
Additional Journal Information:
Journal Volume: 58:2
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COAL; CLEANING; SODIUM HYDROXIDES; QUANTITATIVE CHEMICAL ANALYSIS; SULFUR; ION EXCHANGE CHROMATOGRAPHY; OXIDATION; COAL PREPARATION; EXPERIMENTAL DATA; HYDROGEN PEROXIDE; PH VALUE; SULFATES; ALKALI METAL COMPOUNDS; CARBONACEOUS MATERIALS; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; CHROMATOGRAPHY; DATA; ELEMENTS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; HYDROXIDES; INFORMATION; MATERIALS; NONMETALS; NUMERICAL DATA; OXYGEN COMPOUNDS; PEROXIDES; SEPARATION PROCESSES; SODIUM COMPOUNDS; SULFUR COMPOUNDS; 010800* - Coal, Lignite, & Peat- Waste Management; 400102 - Chemical & Spectral Procedures

Citation Formats

Chriswell, C D, Mroch, D R, and Markuszewski, R. Determination of total sulfur by ion chromatography following peroxide oxidation in spent caustic from the chemical cleaning of coal. United States: N. p., 1986. Web. doi:10.1021/ac00293a012.
Chriswell, C D, Mroch, D R, & Markuszewski, R. Determination of total sulfur by ion chromatography following peroxide oxidation in spent caustic from the chemical cleaning of coal. United States. https://doi.org/10.1021/ac00293a012
Chriswell, C D, Mroch, D R, and Markuszewski, R. 1986. "Determination of total sulfur by ion chromatography following peroxide oxidation in spent caustic from the chemical cleaning of coal". United States. https://doi.org/10.1021/ac00293a012.
@article{osti_6322740,
title = {Determination of total sulfur by ion chromatography following peroxide oxidation in spent caustic from the chemical cleaning of coal},
author = {Chriswell, C D and Mroch, D R and Markuszewski, R},
abstractNote = {Total sulfur in samples of spent caustic arising from the chemical cleaning of coal has been determined by ion chromatography after oxidation of all sulfur species to sulfate. Oxidation with hydrogen peroxide first under basic conditions and subsequently under strongly acidic conditions was required for quantitative conversion of all sulfur species to sulfate. The effects of pH, sample size, and time of oxidation have been studied. The subsequent determination of sulfate by ion chromatography was straightforward, using well-established procedures. The results for total sulfur were reproducible, and the accuracy, based on total sulfur balance, was good. Previously low material balances for total sulfur have been corrected by this modified procedure to acceptable values. 9 references, 3 tables.},
doi = {10.1021/ac00293a012},
url = {https://www.osti.gov/biblio/6322740}, journal = {Anal. Chem.; (United States)},
number = ,
volume = 58:2,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1986},
month = {Sat Feb 01 00:00:00 EST 1986}
}