Process for chemically hardening wood
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United States of America Patent
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Feb 23, 1993
Issued Date -
N/A
app pub date -
Dec 26, 1991
filing date -
Dec 23, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of hardening wood using a pulping agent for the chemical separation of lignin from cellulose in the wood without damage to either component. The pulping agent comprises the reaction product of (a) a compound produced by electrolytic oxidation of a predetermined amount of a loweralkanolamine in aqueous solution and neutralized with a strong mineral acid, with (b) the loweralkanolamine used in excess relative to the predetermined amount of loweralkanolamine subjected to the electrolytic oxidation. Also disclosed are processes utilizing such a pulping agent for chemically debarking whole logs as well as for converting soft wood into hard wood.
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