基本信息:
- 专利标题： A PROCESS FOR THE PRODUCTION OF A SUPERABSORBENT POLYMER
- 专利标题（中）：一种制备超吸收聚合物的方法
- 申请号：PCT/EP2009007036 申请日：2009-10-01
- 公开(公告)号：WO2010040465A8 公开(公告)日：2011-03-31
- 发明人： FRICKER DANIEL , GARTNER HERBERT ALFONS , HAGER MARC , HARREN JOERG , KOHLER HANS-PETER , PLOECHINGER HARALD
- 申请人： EVONIK STOCKHAUSEN GMBH , FRICKER DANIEL , GARTNER HERBERT ALFONS , HAGER MARC , HARREN JOERG , KOHLER HANS-PETER , PLOECHINGER HARALD
- 专利权人： EVONIK STOCKHAUSEN GMBH,FRICKER DANIEL,GARTNER HERBERT ALFONS,HAGER MARC,HARREN JOERG,KOHLER HANS-PETER,PLOECHINGER HARALD
- 当前专利权人： EVONIK STOCKHAUSEN GMBH,FRICKER DANIEL,GARTNER HERBERT ALFONS,HAGER MARC,HARREN JOERG,KOHLER HANS-PETER,PLOECHINGER HARALD
- 优先权： EP08017545 2008-10-07
- 主分类号： C08F2/10
- IPC分类号： C08F2/10 ; A61L15/60 ; C08F20/06 ; C08J11/00
摘要：
The present invention relates to a process for the production of a superabsorbent polymer comprising: (a) preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer, (b) feeding said monomer mixture to a reactor, (c) subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel, and (d) removing the superabsorbent polymer gel from the reactor, (e) drying the superabsorbent polymer gel removed from the reactor, whereby at least one off-gas stream removed from any stage of the process is subjected to scrubbing with an basic aqueous solution prior to venting to obtain an aqueous scrubber solution that is at least partially recycled to any step (a) to (e) of the process.
摘要（中）：
本发明涉及一种制备超吸收性聚合物的方法，其包括：（a）制备选自在聚合后提供超吸收聚合物的单体的水性混合物，（b）将所述单体混合物进料至反应器，（c） （d）从反应器中除去超吸收性聚合物凝胶，（e）干燥从反应器中除去的超吸收性聚合物凝胶，由此至少一种脱水聚合物凝胶从反应器中除去， 从该方法的任何阶段除去的气流在排气之前用碱性水溶液进行洗涤，以获得至少部分地再循环到该方法的任何步骤（a）至（e）的水性洗涤器溶液。