| 发明名称 |
OXYGEN COLOR STRIPPING IN SECONDARY FIBER RECOVERY |
| 摘要 |
<p>Color is removed from secondary pulps with non-chlorine based bleaching agents in treating sequences using oxygen with combinations of peroxide, ozone, and/or hydrosulfite at controlled pH conditions. Acid treatment prior to bleaching steps improves color removal and protects fibers from damage at more severe bleaching conditions.</p> |
| 申请公布号 |
KR950013691(B1) |
申请公布日期 |
1995.11.13 |
| 申请号 |
KR19920008506 |
申请日期 |
1992.05.20 |
| 申请人 |
AIR PRODUCTS AND CHEMICALS INC. |
发明人 |
NADDEO, RONALD CHARLES;HRISTOFAS, KONSTANTIONS;MAGNOTTA, VINCENT LOUIS |
| 分类号 |
D21B1/32;D21C5/02;D21C9/10;D21C9/147;(IPC1-7):D21C5/02 |
主分类号 |
D21B1/32 |
| 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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