AROMATIC MONOMERS IN SPENT LIQUORS OF EUCALYPTUS GRANDIS HYDRO-ALCOHOLIC PULPING

AROMATIC MONOMERS IN SPENT LIQUORS OF EUCALYPTUS GRANDIS HYDRO-ALCOHOLIC PULPING

Aromatic substances of hydro alcoholic pulping spent liquors were studied to understand sub products and physical properties behavior. Spent liquor was prepared to perform a qualitative chromatographic analysis. Eighteen substances were found in the spent liquor, and twelve passed to the distillated...

Full description

Bibliographic Details
Main Author: Núñez, Carlos Eduardo
Format: Online
Language:Spanish
Published: Facultad de Ciencias Exactas, Químicas y Naturales 2003
Subjects:
spent liquors
organosolv pulping
monomers
liquid chromatography
vanillin
pulpado organosolv
licor residual
monómeros
cromatografía líquida
vainillina
Online Access:https://www.fceqyn.unam.edu.ar/recyt/index.php/recyt/article/view/404
Description
Summary:Aromatic substances of hydro alcoholic pulping spent liquors were studied to understand sub products and physical properties behavior. Spent liquor was prepared to perform a qualitative chromatographic analysis. Eighteen substances were found in the spent liquor, and twelve passed to the distillated liquor. Not all peaks were identified. Four principal substances were found in the spent liquor: sinapaldehyde, coniferaldehyde, siringaldehyde and vanillin. Derived acids of the last two compounds also appeared, and p-hydroxibenzoic acid. Siringal-dehyde and vanillin were the substances mostly taken by the steam, but cinamic structure aldehydes were not found.

Similar Items