Phenolic compounds in kraft black liquor
Artikel i vetenskaplig tidskrift, 1978

The prominent phenolic compounds with one aromatic ring in kraft black liquor were analysed by a combination of liquid chromatography, gas chromatography and mass spectrometry. Extracted spruce meal was cooked both under mild, conventional conditions and under extremely severe conditions. In all, the analyzed phenolic compounds amounted to 0.6 kg per 100 kg of dry wood under conventional conditions. In addition to 2-methoxyphenol, vanillin and 4-hydroxy-3-methoxyacetophenone, several phenolic alcohols and carboxylic acids with the same aromatic substitution were isolated and identified. The yield of related 3,4- dihydroxyphenylsubstituted compounds increased under severe conditions.

GC - MS

methoxyphenols

chromatography

pulp mill effluents

softwood

phenols

Författare

Lars Löwendahl

Institutionen för teknisk kemi

Göran Petersson

Institutionen för teknisk kemi

Olof Samuelson

Institutionen för teknisk kemi

Svensk Papperstidning

Vol. 81 12 392-396

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Analytisk kemi

Kemiteknik

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