METHOD AND USE INVOLVING NAPHTHALENE SULPHONATE SALT(S) AND POLYETHYLENE OXIDE, TO IMPROVE RETENTION AND DRAINAGE

摘要

2127696 9411575 PCTABS00032 The present invention relates to a method and a use of naphthalene sulphonate salt(s) under granulated form or as a condensed or diluted solution, and a solution of one or several polyethylene oxide having a molecular weight varying from 1 x 106 to 13 x 106, allowing for a mixture comprising lignocellulosic particles and an aqueous medium to significantly improve the retention of particles such as fines and fibers, on a wire screen and the drainage of the aqueous medium.