发明名称 |
System and process for the oxygen delignification of pulp consisting of lignocellulose-containing material |
摘要 |
The invention relates to a system and a process for the oxygen delignification of pulp consisting of a lignocellulose-containing material that has a mean concentration of 8-18% pulp consistency. The oxygen delignification takes place in a first stage with a short dwell time of about 3-6 minutes, at a low temperature of about 85° C. and under a low pressure of approximately 0-4 bar. A concluding stage has a longer dwell time of about 50-90 minutes, at a higher temperature of approximately 100° C. and under a higher pressure of about 8-10 bar.
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申请公布号 |
US2002108729(A1) |
申请公布日期 |
2002.08.15 |
申请号 |
US20020121170 |
申请日期 |
2002.04.11 |
申请人 |
DAHLLOF HAKAN;RAGNAR MARTIN |
发明人 |
DAHLLOF HAKAN;RAGNAR MARTIN |
分类号 |
D21C9/10;D21C9/147;(IPC1-7):D21C3/26;D21C7/06;D21C7/08 |
主分类号 |
D21C9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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