发明名称 |
METHOD OF PRODUCING LIGNOCELLULOSIC PULP FROM NON-WOODY SPECIES |
摘要 |
High-yield chemimechanical lignocellulosic pulp is produced from non-woody species by cutting and screening the non-woody species, soaking them in an acidic aqueous solution preferably containing a chelating agent, treating the washed non-woody species with an alkaline peroxide solution containing a second chelating agent, and mechanical refining. To further increase the bleaching efficiency the non-woody species are impregnated with ozone or peracetic acid. The resulting pulp has a relatively high brightness while the consumption of peroxide is reduced compared to prior art processes.
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申请公布号 |
CA2328991(A1) |
申请公布日期 |
1999.10.28 |
申请号 |
CA19992328991 |
申请日期 |
1999.04.16 |
申请人 |
ALBERTA RESEARCH COUNCIL, INC. |
发明人 |
PAN, GEORGE X. |
分类号 |
D21C1/04;D21C5/00;D21C9/10;D21C9/16;(IPC1-7):D21C1/04;D21C3/00 |
主分类号 |
D21C1/04 |
代理机构 |
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代理人 |
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主权项 |
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