Title:
Alkaline sulfite digestion followed by acid digestion with bisulfite
United States Patent 3354030
Inventors:
Williams, Robert C.
Joyce, Donald L.
Lee, Showalter Edwin
Publication Date:
11/21/1967
Export Citation:
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Assignee:
ALBEMARLE PAPER CO
Primary Class:
162/86
Other Classes:
162/22
International Classes:
D21C3/26; D21C3/00
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US Patent References:
2885317Method in manufacturing chemical or semi-chemical pulp from heavily resinous wood
2711369Progressive explosion process of defibration
2069943Treatment of cellulosic materials
1848661N/A
1659809Process for freeing cellulose fibers from vegetable materials