Processes for spray drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and microemulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using sprayed polymer particles and agglomerates in water-treating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.

_ proces voor nevel drogen in water oplosbaar en water-swellable vinyl-toevoeging polymeer-be*vatten verspreiding, emulsie en microemulsions te ver*krijgen wezenlijk droog in water oplosbaar of water-swellable polymeer deeltje, samenstelling van wezenlijk droog in water oplosbaar of water-swellable polymeer deeltje, methode van opeen:hopen spray-dried polymeer deeltje, en methode van gebruiken be*spuiten polymeer deeltje en agglomeraat in water-be*handelen, ontginnen, papier, voedsel verwerking, grond conditioneren, oplossing dik maken, biotechnologisch, en olie terugwinning toepassing ont*hullen.

 
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