发明名称 |
A PULP PRODUCTION PROCESS |
摘要 |
<p>A process for the production of a waste-based cellulosic pulp useful for the manufacture of paper and paperboard whether used in admixture with virgin pulp or as the sole pulp component, comprising the steps: a) digesting a waste cellulosic material in an aqueous cooking liquor having a pH lower than about neutral and containing free and/or bound SO2 and a base; b) carrying out digestion with the exclusion of atmospheric oxygen at an elevated temperature, such as within the range about 120 to 160 DEG C and at a correspondingly increased pressure; and c) recovering the resulting cellulosic pulp.</p> |
申请公布号 |
EP0704002(A1) |
申请公布日期 |
1996.04.03 |
申请号 |
EP19940917858 |
申请日期 |
1994.05.26 |
申请人 |
AB KLIPPANS FINPAPPERSBRUK |
发明人 |
KLEINHENZ, KILIAN;LINDQVIST, GOERAN |
分类号 |
D21C3/06;D21C5/02;(IPC1-7):D21C5/02 |
主分类号 |
D21C3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|