发明名称 |
VERFAHREN ZUR HERSTELLUNG VON CHEMISCHEN MASSEN FUER DIE PAPIERHERSTELLUNG |
摘要 |
In the process employing sodium hydroxide and oxygen, with two cooking stages and intermediate defibring, the second stage is replaced by a cooking operation in the presence of an alkaline solution of peroxide containing a stabiliser for the peroxide, at atmospheric pressure. This avoids both the contamination effects of the kraft process, while obtaining a pulp of comparable quality, and the costly plants required by the sodium hydroxide-oxygen process.
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申请公布号 |
DE2833115(A1) |
申请公布日期 |
1979.02.08 |
申请号 |
DE19782833115 |
申请日期 |
1978.07.28 |
申请人 |
PRODUITS CHIMIQUES UGINE KUHLMANN |
发明人 |
LACHENAL,DOMINIQUES;DE CHOUDENS,CHRISTIAN;MONZIE,PIERRE |
分类号 |
D21C3/02;D21C3/26;(IPC1-7):D21C3/26;D21C9/16 |
主分类号 |
D21C3/02 |
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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