MY121717A - Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters
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Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters
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Application filed by Nalco Chemical CofiledCriticalNalco Chemical Co
Priority to MYPI9805509priorityCriticalpatent/MY121717A/en
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Separation Of Suspended Particles By Flocculating Agents
(AREA)
Abstract
THE INVENTION COMPRISES A METHOD FOR CLARIFYING INK-LADEN WATER OBTAINED FROM THE RECYCLING OF PAPER STOCKS BY TREATING SAID WATER WITH A HYDROPHILIC DISPERSION POLYMER. THE HYDROPHILIC DISPERSION POLYMER OF THE INVENTION IS A COPOLYMER OF A DIALLYL N,N-DISUBSTITUTED AMMONIUM HALIDE CATIONIC MONOMER AND (METH)ACRYLAMIDE (ACAM). FOLLOWING DOSING WITH THE POLYMER, A FLOC IS FORMED. THE FLOC CONTAINS INK AND IMPURITIES WHICH ARE REMOVED FROM THE WATER PROCESS STREAM BY MEANS OF SOLID LIQUID SEPARATION; THE SOLID LIQUID SEPARATION COMPRISING A DISSOLVED AIR FLOTATION METHOD. A PREFERRED COPOLYMER IS FORMED FROM DADMAC AND ACAM.
MYPI98055091998-12-041998-12-04Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters
MY121717A
(en)
Polyelectrolyte copolymer containing silicon and active surface process to clarify waste water from recycled paper production process to remove used oil from oily industrial waste water process to condition waste water in food processing process to remove wastewater color from paper mill waste process for clarifying waste water containing turbidity-causing components and process for controlling resin in papermaking systems