The invention generally relates to a process for the preparation of surface-crosslinked water-absorbent polymer particles, comprising a sequence of process steps of (i) preparing an aqueous monomer solution comprising at least one partially neutralized, monoethylenically unsaturated monomer bearing carboxylic acid groups (α1) and at least one crosslinker (α3) (ii) adding a polymerization initiator or a at least one component of a polymerization initiator system that comprises two or more components to the aqueous monomer solution (iii) optionally decreasing the oxygen content of the aqueous monomer solution (iv) charging the aqueous monomer solution into a polymerization reactor (v) polymerizing the monomers in the aqueous monomer solution in the polymerization reactor (vi) discharging the polymer gel out of the polymerization reactor and comminuting the polymer gel, thereby obtaining polymer gel particles (vii) drying the polymer gel particles (viii) grinding the dried polymer gel particles thereby obtaining water-absorbent polymer particles (ix) contacting at least a part of the water-absorbent polymer particles with a crosslinking composition, comprising a further crosslinker, thereby obtaining surface-crosslinked water-absorbent polymer particles wherein in process step (vi) a plurality of fine surface-crosslinked water-absorbent polymer particles is added to the polymer gel or the polymer gel particles or both.De manière générale, linvention concerne un procédé pour la préparation de particules polymères absorbant leau réticulées en surface, comprenant une séquence détapes de traitement consistant à (i) préparer une solution monomère aqueuse comprenant au moins un monomère à insaturation monoéthylénique partiellement neutralisé portant des groupes acide carboxylique (α1) et au moins un agent de réticulation (α3) (ii) ajouter à la solution monomère aqueuse un initiateur de polymérisation ou au moins un composant dun système initiateur de polymérisation qui compr
