Nitrocellulose purification

Details Nitrocellulose purification Nitrocellulose purification

1982-04-05

1983-08-30

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 38, 149 94, 149 96, 149100, C08B 504

Patent

active

044018096

ABSTRACT:
There is disclosed a multi-vessel autoclave which is suitable for use in a continuous process for purifying nitrocellulose made by the nitric acid-sulfuric acid nitration of cellulose. The autoclave comprises a plurality of adjacent cylindrical vessels wherein each common wall between the adjacent vessels has an opening for the passage of the nitrocellulose which is in a slurry. The openings are situated so the slurry flows in a serpentine path.

REFERENCES:
patent: 1380392 (1921-06-01), Kitsee
patent: 1562093 (1925-11-01), Juer
patent: 1818733 (1931-08-01), Milliken
patent: 2310862 (1943-02-01), Nessler
patent: 2341221 (1944-02-01), Kingery
patent: 2367533 (1945-01-01), Sillick
patent: 2950278 (1960-08-01), Plunkett
patent: 3368875 (1968-02-01), Tulleners
patent: 4206302 (1980-06-01), Pollozec et al.

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