发明名称 |
PRODUCTION OF MICROCRYSTALLINE CELLULOSE BY REACTIVE EXTRUSION |
摘要 |
This process involves feeding cellulose into an extruder with an acid solution. The extruder is comprised of a screw and a barrel. The screw is rotated so as to pressurize the cellulose, and the cellulose undergoes acid hydrolysis and forms microcrystalline cellulose. The invented process can be accomplished by using pure cellulose or a lignocellulosic material as the starting material. If a lignocellulosic material is used, then a basic solution is added to it and the lignocellulosic material is fed through an extruder so as to obtain a mixture comprising lignin, hemicellulose and cellulose. The lignin and hemicellulose are extracted and the remaining cellulose is processed, as discussed previously, to form microcrystalline cellulose.
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申请公布号 |
CA2304104(A1) |
申请公布日期 |
1999.04.01 |
申请号 |
CA19982304104 |
申请日期 |
1998.09.17 |
申请人 |
BOARD OF REGENTS OF UNIVERSITY OF NEBRASKA |
发明人 |
HANNA, MILFORD;MILADINOV, VESSELIN;BIBY, GERALD |
分类号 |
C08B15/02;C08H8/00;(IPC1-7):C08B1/00;C08B15/00 |
主分类号 |
C08B15/02 |
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