发明名称 |
PROCESS FOR THE PRODUCTION OF A SUPERABSORBENT POLYMER |
摘要 |
The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer gel from the reactor; and drying the superabsorbent polymer gel. Where at least one off-gas stream removed from any stage of the process is subjected to scrubbing with a basic aqueous solution prior to venting to obtain an aqueous scrubber solution that is at least partially recycled to any of the above steps of the process.
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申请公布号 |
US2010105809(A1) |
申请公布日期 |
2010.04.29 |
申请号 |
US20090575124 |
申请日期 |
2009.10.07 |
申请人 |
FRICKER DANIEL;GARTNER HERBERT;HAGER MARC;HARREN JOERG;KOHLER HANS-PETER;PLOECHINGER HARALD |
发明人 |
FRICKER DANIEL;GARTNER HERBERT;HAGER MARC;HARREN JOERG;KOHLER HANS-PETER;PLOECHINGER HARALD |
分类号 |
C08F2/16 |
主分类号 |
C08F2/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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