<p>A process for deinking paper being recycled in a carbonate pulping procedure which is performed in the absence of hydroxides and peroxides is improved by the addition of (a) a non-ionic surfactant deinking agent having a cloud point of about 55 to 85, preferably 60-70, and (b) at least two different fatty acid ink collectors: (i) a C16 to C20 fatty acid and (ii) a C22 to C30 fatty acid, the ink collectors being used in a weight ratio of from about 98:2 to 70:30.</p>
申请公布号
WO2005054571(A1)
申请公布日期
2005.06.16
申请号
WO2004US40154
申请日期
2004.12.01
申请人
SOUTHERN IONICS INCORPORATED;ROBINSON, PETER, M.;PRESLEY, JOHN, RICHARD