| 摘要 |
<p>PCT No. PCT/EP90/00422 Sec. 371 Date Sep. 23, 1991 Sec. 102(e) Date Sep. 23, 1991 PCT Filed Mar. 15, 1990 PCT Pub. No. WO90/11402 PCT Pub. Date Oct. 4, 1990.In a process for processing waste paper, aqueous suspensions of pulp are treated with cationic layer compounds precipitated in situ. The separated printing inks, fillers and/or unwanted substances are then removed from the fibrous suspensions in a known manner by flotation or washing out.</p> |
| 申请人 |
HENKEL KGAA, 4000 DUESSELDORF, DE |
发明人 |
ENDRES, HELMUT, DR., 4000 DUESSELDORF, DE;LIPHARD, MARIA, DR., 4300 ESSEN, DE;HORNFECK, KLAUS, 4020 METTMANN, DE;ARNOLD, ANDREAS, 4018 LANGENFELD, DE;GEISMAR, GUENTER, PROF., 4150 KREFELD, DE |
