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Phenolic compounds in kraft black liquor

Fenoler i svartlut

Lars Löwendahl (Institutionen för teknisk kemi) ; Göran Petersson (Institutionen för teknisk kemi) ; Olof Samuelson (Institutionen för teknisk kemi)
Svensk Papperstidning Vol. 81 (1978), 12, p. 392-396.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: pulp mill effluents, softwood, phenols, methoxyphenols, chromatography, GC - MS

Denna post skapades 2010-09-25. Senast ändrad 2010-09-27.
CPL Pubid: 126903


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