Paper Information

Journal:   IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES   SPRING-SUMMER 2010 , Volume 1 , Number 1; Page(s) 45 To 56.
 
Paper: 

CHARACTERIZATION AND REMOVAL OF RESINS FROM MIXED TROPICAL HARDWOODS KRAFT PULP

 
Author(s):  RAHMATI HAYEDEH, ABD ALKHANI A.*, HAMZEH Y.
 
* 
 
Abstract: 

Wood resin of mixed tropical hardwoods (MTH) Kraft pulp was removed and characterized. Characterization of wood resin from different pulping stages was achieved accurately using Pyrolytic Gas Chromatographic-Mass Spectrometry (Py-GC-MS). Two types of resin were recognized: (1) small fraction of unreactive and inaccessible damar resin which was only found to be concentrated in centri-cleaner reject, (2) large fractions of fatty acids, fatty alcohols, and sterols. These can be removed chemically, e.g. by surfactant addition. Results of experiments showed that addition of surfactant enhances removal of extractives and decreases the chemical consumption during bleaching stage.

 
Keyword(s): EXTRACTIVES, RESIN; PY-GC-MS, SURFACTANT; HARDWOODS, BLEACHING
 
References: 
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