Chain extended polyelectrolyte salts and their use in flocculation processes
Abstract
Abstract WATER-SOLUBLE POLY(QUATERNARY AMMONIUM) POLYETHER POLYELECTROLYTE SALTS CONTAINING QUATERNARY NITROGEN ATOMS IN THE POLYMER BACKBONE AND CHAIN-EXTENDED BY ETHER GROUPS ARE PREPARED BY TREATING THE POLYMERIC REACTION PRODUCT FROM AN N,N,N'',N''-TETRAALKYL-HYDROXY SUBSTITUTED DIAMINE AND AN ORGANIC DIHALIDE SUCH AS A DIHALOALKANE OR A DIHALO ETHER WITH AN EPOXYHALOALKANE. THESE POLYELECTROLYTES ARE USED IN PROCESSES FOR FLOCCULATING PARTICLES DISPERSED IN AQUEOUS MEDIA, FOR EXAMPLE, WHITE WATER CLARIFICATION, CLAY FLOCCULATION, SEWAGE TREATMENT, AND WET-END ADDITION, BY ADDING THE POLYELECTROLYTE TO THE AQUEOUS MEDIA IN AMOUNTS SUFFICIENT TO FLOCCULATE THE DISPERSED PARTICLES.
Inventors
- 👤 Edward Witt
Bibliographic Details
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