ZUSAMMENSETZUNGEN AUS ZELLSTOFFFASERN UND VERFAHREN ZU DEREN HERSTELLUNG
摘要
The present invention comprises an improved method for refining cellulose that produces a highly refined cellulosic material. The method comprises soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. The present invention also comprises a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g H<SUB>2</SUB>O/g dry HRC.
申请公布号
DE60014701(D1)
申请公布日期
2004.11.11
申请号
DE2000614701
申请日期
2000.11.03
申请人
REGENTS OF THE UNIVERSITY OF MINNESOTA, MINNEAPOLIS;AGRICULTURAL UTILIZATION RESEARCH INSTITUTE, WASECA
发明人
LUNDBERG, BROCK;GU, LIN;RUAN, ROGER;CHEN, LING;ADDIS, BRADLEY;JOHNSON, EDGAR