发明名称 |
AUFWERTUNG VON TMP-FASERSTOFF ZU EINER SC/LWC QUALITÄT |
摘要 |
Processes are disclosed for processing low consistency newsprint pulp including refining the pulp in a first refiner to a consistency of greater than 2%, screening the processed pulp with a slotted screen basket with a slot width of from 0.05 to 0.15 mm, with the withdrawal of the primary reject portion being greater than 50%, withdrawing the accept portion for further processing, dewatering the reject portion to provide a high consistency pulp, refining the high consistency pulp in a second refiner, screening the processed high width consistency pulp with a slotted screen basket having a slot of less than 0.15 mm, and combining the two accept portions for the further processing steps. |
申请公布号 |
DE69923603(T2) |
申请公布日期 |
2006.04.06 |
申请号 |
DE1999623603T |
申请日期 |
1999.11.19 |
申请人 |
VALMET FIBERTECH AB, SUNDSVALL |
发明人 |
DANIELSSON, OVE;FALK, BO;KARLSSON, ULF;KJELLSTROEM, KENNETH |
分类号 |
D21B1/14;D21D1/20;D21D1/30;D21D5/02 |
主分类号 |
D21B1/14 |
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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