ACCELERATED PULPING PROCESS,申请号AU19800061265-传众专利搜索

ACCELERATED PULPING PROCESS

申请公布号：AU6126580(A)

申请号：AU19800061265

申请日期：1980.07.08

申请公布日期：1981.02.13

申请人：

PRIOR, ERIC S.

发明人：E.S. PRIOR

分类号：A23K10/32;C09K17/00;C09K17/32;C09K17/50;D21C3/16;D21C3/22;D21H17/23

主分类号：A23K10/32

摘要：A process for making defibered pulp material comprising the steps of treating fibrous ligno-cellulosic material with aqueous nitric acid having an HNO3 concentration of about 0.15 to 9.0 wt.% and containing at least one aluminum compound in an amount of at least 0.01 parts by weight of aluminum ions per each 10 parts by weight of HNO3 (10,17), so as to nitrate ligneous component of said material; and thereafter defibering (15,21) directly, or treating the nitrated ligno-cellulosic material with alkali (13, 19) to seperate the ligneous component from the cellulosic pulp, and, optionally, recombining a part or all of the ligneous component with the cellulosic pulp.