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High Performance Polymer flocculant, Process for their PreparationMethod for Releasing water from a dispersion of suspended solids and dispersion method of Flocculation of suspended Solids
High Performance Polymer flocculant, Process for their PreparationMethod for Releasing water from a dispersion of suspended solids and dispersion method of Flocculation of suspended Solids
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机译:高性能高分子絮凝剂,其制备方法从悬浮固体分散体中释放水和悬浮固体絮凝的分散方法
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摘要
An unsheared, H2O-soluble branched cationic or anionic polymeric flocculant having soln. viscosity of at least 1-8 m pas (cationic) or 3.0 mpas (anionic) (0.1 wt% soln. imnall at 60 rpm, 25 degC), comprises polymerising one or more cationic or anionic, H2O-Sd, ethylenically unsatd. monomers with 4-80 mol. ppm of at least one branching agent in the presence of at least one chain-transfer agent to give a branched polymeric flocculant with solubility quotient greater than 30%; and for the prepn. of an unsheared, H2O-soluble, branched, nonionic polymeric flocculant having soln. viscosity of at least 1.9 mpas (0.1 wt% soln in 1mnacall at 60 vpm, 25 deg C) & comprising at least one ethylenically non-ionic monomer & having 4-80 mol. ppm branching agent content, comprises polymerising one or more H2nO-sol., non-ionic, ethylenically unsatd. monomers & 4-80 mol. ppm of at least are branching agent in the presence of a chain transfer agent.
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