发明名称 |
Processer för xylanasbehandling av blekning |
摘要 |
A method of bleaching chemical pulp with xylanase after chemical bleaching is provided. The method comprises the steps of exposing chemical pulp to a chlorine dioxide bleaching stage to produce a partially bleached pulp, treating the partially bleached pulp with a xylanase in an enzyme treatment stage at a pH of about 3 to about 8, then carrying out an alkaline extraction of the pulp. The pulp bleaching method of the present invention may be performed in a pulp mill as part of a complex pulp bleaching process. |
申请公布号 |
SE0302088(L) |
申请公布日期 |
2003.09.12 |
申请号 |
SE20030002088 |
申请日期 |
2003.07.17 |
申请人 |
IOGEN BIO PRODUCTS CORP |
发明人 |
TOLAN JEFFERY S;POPOVICI CORINA;THIBEAULT LUC |
分类号 |
D21C5/00;D21C9/10;(IPC1-7):D21C9/00 |
主分类号 |
D21C5/00 |
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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