发明授权
US3980529A Process for separating and recovering residual monomers from aqueous suspensions of acrylonitrile polymers 失效
从丙烯腈聚合物的水悬浮液中分离和回收残留单体的方法

Process for separating and recovering residual monomers from aqueous
suspensions of acrylonitrile polymers
摘要:
The invention relates to a process for the recovery of acrylonitrile and other monomers from an aqueous polymer dispersion by continuous distillation in a thin-layer evaporator under reduced pressure, condensation of the evaporated monomers in a condenser under the same or similar reduced pressure and subsequent condensation or absorption respectively of the monomer vapors which have not been condensed in the condenser at a higher pressure.
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