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Record 1 1981-01-26


Subject field(s)
  • Chemical Engineering
  • Wastewater Treatment

Sulphonated polystyrenes. The great majority of cation exchangers in current use consist of these products. They are all obtained in the same way: Copolymerization of styrene and divinylbenzene in emulsion form to obtain perfect spheres on solidification; Sulphonation of the beads thus obtained.

Key term(s)
  • divinylbenzene copolymerization


  • Génie chimique
  • Traitement des eaux usées

Polystyrènes sulfonés. Ces produits constituent la grosse majorité des échangeurs de cations actuellement utilisés. Ils sont tous dérivés du même schéma. Copolymérisation de styrène et de divinylbenzène effectuée sous forme d'émulsion de façon à obtenir des sphères parfaites à la solidification. Sulfonation des billes ainsi obtenues.


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