AIDS FOR FILTRATION AND/OR DEHYDRATION OF MINERAL AND COAL SUSPENSIONS

摘要

PCT No. PCT/EP91/01049 Sec. 371 Date Dec. 15, 1992 Sec. 102(e) Date Dec. 15, 1992 PCT Filed Jun. 6, 1991 PCT Pub. No. WO91/19556 PCT Pub. Date Dec. 26, 1991.Addition of alkyl and/or alkenyl polyalkylene glycol ethers as filtration aids in the filtration and/or dehydration of mineral or coal suspensions reduces the dehydration time, and filter cakes with a low residual moisture content are obtained.