Method for reducing pulp to powder and process for the...

Details Method for reducing pulp to powder and process for the... Method for reducing pulp to powder and process for the...

2005-04-26

2005-04-26

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S077000, C536S084000, C536S124000

Reexamination Certificate

active

06884883

ABSTRACT:
Pulp is ground by means of a vertical roller mill. The average particle diameter of the resulting powdered pulp is adjusted to 20-300 μm. The powdered pulp thus obtained is used as a starting material for the production of cellulose ethers.

REFERENCES:
patent: 2663907 (1953-12-01), Downing
patent: 3649292 (1972-03-01), Quame
patent: 4415124 (1983-11-01), Carduck et al.
patent: 59-75901 (1984-04-01), None
patent: 89-07828 (1989-02-01), None
patent: 09-076233 (1997-03-01), None
patent: 10 028890 (1998-02-01), None

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