Title:
Method for integrating sodium based sulfite and sulfate pulping processes
United States Patent 2974081
Inventors:
Biggs Jr., William A.
Robertson, Julius D.
Publication Date:
03/07/1961
Export Citation:
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Assignee:
SONOCO PRODUCTS CO
Primary Class:
162/33
International Classes:
D21C11/00; D21C11/00
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US Patent References:
2744927Solvent extraction of black liquor
2714118Recovery of chemicals from black liquor
2459570Method of refining sulfate turpentine
1867593Process of chemical fiber liberation
1859888Process of regenerating spent alkaline liquor to fresh acid cooking liquor
1834676Process of producing pulp and treatment of residual liquors
1833313Treatment of residual liquors
1795755Production of chemical pulp
1637515Treatment of residual liquors
1602553Process of producing pulp high in resistant crllulose
1519508Interrelated process of and apparatus for producing sulphate and sulphite pulp
1298479N/A
1017320N/A