Delignification of biomass containing lignin and production of adhesive compositions and methods of making lignin cellulose compositions
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United States of America Patent
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May 26, 2016
app pub date -
Nov 24, 2014
filing date -
Nov 24, 2014
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Abstract
Delignification of biomass consisting of lignin containing plants is done by utilizing an amino compound in and aqueous solution at ambient temperature up to 150 degree C. to produce and aqueous solution of amino lignin and an amino lignin cellulose which is not soluble in water. The aqueous solution of amino lignin is then filtered off of the amino lignin cellulose. The aqueous solution of amino lignin or the amino lignin with the amino lignin cellulose may be reacted with an abundant and renewable resources such as plant protein and/or carbohydrates to produce an amino lignin protein and/or carbohydrates adhesive and resin. The resins are hard, strong, and maybe used to make exterior fiberboard, OAS boards, plywood, molded products, etc. The amino lignin cellulose may be hydrolyzed by any suitable means such as acid hydrolysis, cellulase or bacterial enzymes into carbohydrates which can be fermented in alcohol.
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