TREATMENT OF CELLULOSIC MATERIAL AND COMPOSITIONS FOR USE IN THIS
摘要
<p>Waste paper, especially office waste including laser and/or photocopier paper, is subjected to de-inking by pulping in the presence of a water-soluble anionic polymer at a substantially neutral pH and then by flotation in the presence of a cationic surfactant.</p>
申请公布号
WO9512026(A1)
申请公布日期
1995.05.04
申请号
WO1994GB02350
申请日期
1994.10.26
申请人
ALLIED COLLOIDS LIMITED;STOCKWELL, JOHN, OLIVER;BINGHAM, TIMOTHY, GUY;LANGLEY, JOHN, GRAHAM
发明人
STOCKWELL, JOHN, OLIVER;BINGHAM, TIMOTHY, GUY;LANGLEY, JOHN, GRAHAM