Estimation of alkylphenol content in coal recycle solvents

Alkylphenols from coal recycle solvents were separated into mono-ortho and non-ortho substituted alkylphenol fractions. Each fraction was further separated with a high-performance liquid chromatographic μ-Bondapak NH 2 column and straight-chain heptane:isopropanol (99:1) mobile phase. The areas unde...

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Bibliographic Details
Published in:Fuel (Guildford) 1981-01, Vol.60 (5), p.385-389
Main Authors: Hurtubise, Robert J., Allen, Todd W., Schabron, John F., Silvert, Howard F.
Format: Article
Language:English
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Summary:Alkylphenols from coal recycle solvents were separated into mono-ortho and non-ortho substituted alkylphenol fractions. Each fraction was further separated with a high-performance liquid chromatographic μ-Bondapak NH 2 column and straight-chain heptane:isopropanol (99:1) mobile phase. The areas under the chromatographic peaks corresponding to the mono-ortho and non-ortho substituted phenols were determined and the percentages of these alkylphenols were calculated. The method yielded a pooled standard deviation of 0.76% for the mono-ortho determinations and 0.61% for the non-ortho determinations. Thirty-three recycle solvents were investigated.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(81)90274-X