WOOD FIBRE ACETYLATION

Disclosed is a modified refiner system for the acetylation of wood chip and/or wood fiber. The invention comprises a process for the acetylation of wood chip in a refiner system including a feed hopper component, a non-steam digester component and a refiner (defibrator) component in which the chip i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BENJAMIN PAINTER
Format:	Patent
Sprache:	eng ; por
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is a modified refiner system for the acetylation of wood chip and/or wood fiber. The invention comprises a process for the acetylation of wood chip in a refiner system including a feed hopper component, a non-steam digester component and a refiner (defibrator) component in which the chip is contacted with an acetylating fluid between the hopper and the digester components within a connecting multi-zone compression feed screw.