发明名称 |
PROCESS FOR DEINKING PRINTED WASTE PAPER |
摘要 |
<p>A procedure wherein printed waste paper is treated in a pulper under alkaline pH conditions by means of an alkali metal silicate, oxidising bleaching agents, higher fatty and/or resin acids and dispersants and the released particles of printing ink are separated from the suspension of fibres by flotation, where the fatty and/or resin acids are used in the form of their alkaline earth metal salts finely distributed together with dispersants in an oil-in-water dispersion which is liquid at room temperature.</p> |
申请公布号 |
EP0277570(A3) |
申请公布日期 |
1989.01.25 |
申请号 |
EP19880101000 |
申请日期 |
1988.01.25 |
申请人 |
CHEMISCHE FABRIK GRUNAU GMBH |
发明人 |
LEHMANN, KLAUS;DOMSCH, ANDREAS, DR.;HAWEL, HANS |
分类号 |
D21C5/02;(IPC1-7):D21C5/02 |
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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