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PROCESS FOR THE RECOVERY AF AMMONIUM SULFATE FROM ITS SOLUTIONS CONTAMINATED BY ACRYLONITRILE, POLYACRYLONITRILE, FORMAMIDE, ACETONITRILE, HYDROCYANIC ACID AND ITS POLYMERS, ACRYLIC ACID AND ACRYLAMIDES
PROCESS FOR THE RECOVERY AF AMMONIUM SULFATE FROM ITS SOLUTIONS CONTAMINATED BY ACRYLONITRILE, POLYACRYLONITRILE, FORMAMIDE, ACETONITRILE, HYDROCYANIC ACID AND ITS POLYMERS, ACRYLIC ACID AND ACRYLAMIDES