Process for converting cellulose directly into alkali cellulose

Details Process for converting cellulose directly into alkali cellulose Process for converting cellulose directly into alkali cellulose

1981-08-20

1983-02-08

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 60, C08B 108

Patent

active

043730981

ABSTRACT:
A direct process for converting cellulose into alkali cellulose for subsequent production of a filterable viscose by combining particles of cellulose with the largest 1% of the particles having a minimum size Y of less than 600 microns and the bulk density X of the particles being greater than 0.2 g/cm.sup.3 such that the relationship between X and Y is defined by the equation Y-760X.ltoreq.50; and 125 g to 240 g of 20-40% aqueous NaOH for each 100 g of cellulose for at least 4 minutes at 15.degree.-60.degree. C.

REFERENCES:
patent: 1858017 (1932-05-01), Lilienfeld
patent: 2274463 (1942-02-01), Stoeckly et al.
patent: 2735846 (1956-02-01), Richter, Jr.
patent: 3615254 (1971-10-01), Eichenseer
patent: 3857833 (1974-12-01), Warzecha et al.
patent: 3914130 (1975-10-01), Newcomer
patent: 4269973 (1981-05-01), Geyer et al.

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