DANIEL FRICKER,HARALD PLÖCHINGER,MARC HAGER,RICHARD WALTHER
申请号：
BR112014017054
公开号：
BR112014017054B1
申请日:
2012.12.14
申请国别(地区):
BR
年份:
2019
代理人:
摘要：
The invention refers generally to a process for the preparation of water -absorbing polymeric particles, comprising the process steps of: (i) preparation of an aqueous solution of monomer induction Monoethylenically neutralised monoethylene unsaturated mono -mers having acid groups (a1) and at least one reticulation agent (a3)；(ii) optional addition of fine particles of a water -absorbing polymer or saline aqueous solutions to the monomer aqueous solution； (iii) addition of a polymerisation initiator or or of at least one component of a polymerisation initiation system comprising two or more The components to the monomer aqueous solution； (iv) oxygen depletion of the monomer aqueous solution； (v) supply of the monomer aqueous solution in a polymerisation reactor； (vi) polymer polymer in the monomer aqueous solution in a polymer reactor Action；(vii) discharge of the polymer gel plate out of the polymerisation reactor and optionally fragmentation of the material then obtaining polymer gel particles； (viii) drying of polymer gel particles； (ix) grinding of dry polymer gel particles Ground water -absorbing polymer ulas； (x) classification by size of the ground particles of water -absorbing polymer； and (xi) reticulation of the surface of the water -absorbing and classified polymer particles； where the process step (xi) comprises steps (d) And: (xia) mixing of particles with aqueous solution of the reticulation agent；And (xib) heat treatment of the mixture obtained at the process stage (xia) in a horizontally operated mixing equipment； where the horizontal mixing equipment operated is hydraulically triggered.processo para o preparo de partículas poliméricas absorvedoras de água a invenção é referente genericamente a um processo para a preparação de partículas poliméricas absorvedoras de água, compreendendo as etapas de processo de: (i) preparo de uma solução aquosa de monômero compreendendo monômeros pelo menos parcialmente neutralizados insaturados monoetilenicamente po
