INVESTIGADORES
AREA Maria cristina
congresos y reuniones científicas
Título:
Upgrading Spent Liquors from NSSC Process: Quality and Quantity of Organic Components
Autor/es:
AREA, M.C., FELISSIA, F.E., NÚÑEZ, C.E., VENICA, A.D., VALADE, J.L.
Lugar:
México, Cancun
Reunión:
Simposio; Symposium: "Structure and Properties of Ligno-cellulosic Materials", 5th North American Chemical Congress; 1997
Institución organizadora:
American Chemical Society, la Canadian Society for Chemistry y la Sociedad Química de México
Resumen:
Modern trends indicate the use of pulping processes that require less chemicals being morefriendlier to the environment. This is the case of the NSSC (Neutral Sulfite Semi-Chemical)process where there is a need for disposing spent liquors economically and ecologically. Abetter knowledge of chemical composition and characteristics of solubilized substancescombined with the proper separation techniques is a must. The present work is concerned withthe quantitation and qualification of organic components in spent liquors. Hemicelluloses andlignosulfonates molecular weights are estimated with the objective of evaluate if a molecularseparation of this species is possible using ultrafiltration.