| 发明名称 |
FOERFARANDE FOER BEHANDLING AV KEMISKA PAPPERSMASSOR |
| 摘要 |
When paper pulp is bleached with an alkaline peroxide solution and pretreated with an acid solution, it has been found that, while preserving the mechanical properties of the pulp, its lignin content is considerably reduced if the treatment with the acid solution is carried out at temperatures of at least 50 DEG C. |
| 申请公布号 |
FI830288(L) |
申请公布日期 |
1983.07.29 |
| 申请号 |
FI19830000288 |
申请日期 |
1983.01.27 |
| 申请人 |
PCUK PRODUITS CHIMIQUES UGINE KUHLMANN TOUR MANHATTAN - LA DEFENSE |
发明人 |
LACHENAL, DOMINIQUE;DE CHOUDENS, CHRISTIAN |
| 分类号 |
D21C9/16;D21C9/10 |
主分类号 |
D21C9/16 |
| 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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