发明名称 |
Method of xylanase treatment in a chlorine dioxide bleaching sequence |
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.
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申请公布号 |
US7320741(B2) |
申请公布日期 |
2008.01.22 |
申请号 |
US20030466640 |
申请日期 |
2003.11.12 |
申请人 |
IOGEN BIO-PRODUCTS CORPORATION |
发明人 |
TOLAN JEFFREY S.;POPOVICI CORINA;THIBAULT LUC |
分类号 |
D21C3/18;D21C5/00;D21C9/10 |
主分类号 |
D21C3/18 |
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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