公开(公告)号：US20150017426A1

公开(公告)日：2015-01-15

申请号：US14364313

申请日：2012-12-13

申请人： Herbert Vorholt ,  Henry Rudolph ,  Manfred van Stiphoudt ,  Armin Reimann ,  Detlef Jung ,  Martin W. Beerhorst ,  Heinz-Peter Grupe ,  Volker Becker

发明人： Herbert Vorholt ,  Henry Rudolph ,  Manfred van Stiphoudt ,  Armin Reimann ,  Detlef Jung ,  Martin W. Beerhorst ,  Heinz-Peter Grupe ,  Volker Becker

IPC分类号： A61L15/60 ,  A61L15/24 ,  C08J3/075

CPC分类号： A61L15/60 ,  A61L15/24 ,  C08F6/008 ,  C08F220/06 ,  C08J3/075 ,  C08J2333/02 ,  C08L33/02 ,  F25B15/06 ,  Y10T428/254

摘要： The invention relates to a process for the preparation of water-absorbent polymer particles, comprising the process steps of preparing an aqueous monomer solution comprising at least partially neutralized, monoethylenically unsaturated monomers bearing carboxylic acid groups (α1) and at least one crosslinker (α3), and at least partially neutralizing acrylic acid by mixing acrylic acid with an aqueous solution of sodium hydroxide, thereby obtaining an aqueous solution of the at least partially neutralized acrylic acid; cooling the aqueous solution with a cooling liquid in a heat exchanger, wherein the cooling liquid used in the heat exchanger has been cooled in an absorption chiller in which at least a part of the heat of the heated cooling liquid obtained in the heat exchanger is consumed by the evaporation of a refrigerant liquid in a vacuum that is created by the absorption of a refrigerant vapor into an absorbent.

摘要翻译： 本发明涉及一种制备吸水性聚合物颗粒的方法，包括制备含有至少部分中和的带有羧酸基团（α1）和至少一种交联剂（α3）的单烯属不饱和单体的单体水溶液的方法步骤， 并通过将丙烯酸与氢氧化钠水溶液混合而至少部分中和丙烯酸，从而得到至少部分中和的丙烯酸的水溶液; 在热交换器中用冷却液冷却水溶液，其中在热交换器中使用的冷却液已被吸收式冷却器冷却，其中在热交换器中获得的加热的冷却液的热量的至少一部分被消耗 通过将制冷剂蒸气吸收到吸收剂中而产生的真空中的制冷剂液体的蒸发。