Purification of acrylonitrile by quenching absorption distillation and recycle to the absorber
Abstract
Abstract A PROCESS FOR THE REDUCTION OF THE METHACRYLONITRILE CONTENT OF PRODUCT ACRYLONITRILE WHICH COMPRISES INTRODUCING AT LEAST A PORTION OF A METHACRYLONITRILE RICH BOTTOM FRACTION FROM AN ACRYLONITRILE-HEAVY ENDS SPLITTER COLUMN INTO A DISTILLATION ZONE USED TO SEPARATE LOW-BOILING ORGANIC MATERIAL FROM WATER, TAKING AT LEAST A PORTION OF THE OVERHEAD FROM SAID DISTALLATION ZONE AND INTRODUCING SAID FRACTION INTO AN ACRYLONITRILE ABSORBING COLUMN, TAKING OVERHEAD FROM SAID ABSORBING COLUMN A FRACTION CONTAINING AT LEAST A PART OF THE METHACRYLONITRILE, TAKING A BOTTOM FRACTION FROM THE ABSORBING COLUMN, REMOVING THE ABSORBING SOLVENT FROM THE BOTTOM FRACTION AND RETURNING THE ACRYLONITRILE IN THE BOTTOM FRACTION TO THE ACRYLONITRILE-HEAVY ENDS SPLITTER COLUMN.
Inventors
- 👤 Gordon H Lovett
- 👤 Ronald E Rambin
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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