发明名称 |
Method of reducing the amount of surface active agents when deinking paper and deinking device implementing this method |
摘要 |
<p>The process for de-inking paper, comprises eliminating ink particles by flotation, separating surfactants by dispersed air flotation (22), and eliminating flotation foams (6) containing the separated surfactants. The separation of the surfactants is carried out in waters of a first flotation loop and a clear filtrate filter disk (8) or in thickened water of the flotation foams. The flotation foams are treated with ozone and then evacuated at a level of sludge drainage unit. An independent claim is included for a device for de-inking paper.</p> |
申请公布号 |
EP1881105(A2) |
申请公布日期 |
2008.01.23 |
申请号 |
EP20070301076 |
申请日期 |
2007.05.31 |
申请人 |
CENTRE TECHNIQUE DE L'INDUSTRIE DU PAPIER, CARTONET CELLULOSE |
发明人 |
CARRE, BRUNO |
分类号 |
D21C5/02;B03D1/02;B03D1/08 |
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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