发明名称 |
VERFAHREN UND VORRICHTUNG ZUR BEHANDLUNG VON FASERSUSPENSIONEN WELCHE MINERALIEN ENTHALTEN, WIE GESTRICHENES ALTPAPIER, BEI DER PAPIERHERSTELLUNG |
摘要 |
<p>A method and apparatus treat fiber based material so as to reduce the loss of mineral fractions in the treatment of broke in paper production. Broke is a reusable raw material from a paper machine that contains mineral fractions which are desirably returned to the process as a raw material. The material containing minerals is dispersed into broke pulp, which is fractionated, and the accepts from the fractionation are returned to the paper manufacturing process providing for efficient and economical recovery of the minerals in broke. The mineral fraction provided in the rejects from the fractionation is treated separately before it is reused as filler or coating material in the production of paper or board.</p> |
申请公布号 |
DE69907442(D1) |
申请公布日期 |
2003.06.05 |
申请号 |
DE1999607442 |
申请日期 |
1999.03.12 |
申请人 |
ANDRITZ OY, HELSINKI |
发明人 |
VIKIOE, PENTTI |
分类号 |
D21C5/02;D21D5/00;D21F1/66;(IPC1-7):D21F1/66 |
主分类号 |
D21C5/02 |
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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