Method of enhancing green liquor semi-chemical pulp production
Patent 5127993 Issued on July 7, 1992. Estimated Expiration Date: 
January 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2999045 3909345 Method of enhancing the cooking of wood chips for pulp production Patent #: 4906331 AbstractThe present invention is directed to the use of certain ethoxylated compounds to increase the yield of green liquor semi-chemical pulping processes, the compound have the following structures: ##STR1##Other References
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