VERFAHREN ZUR REINIGUNG VON DIMETHYLACETAMID (DMAC)

• Main Authors: ALTHAUS, KLAUS, KIRCHNER, TANJA, STAATZ, HARTMUT, SCHOENMAKERS, HARTMUT, PESCHEL, WERNER
• Format: Patent
• Language: German
• Published: 15.04.2007
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to a process for distillatively purifying crude dimethylacetamide (crude DMAc) comprising DMAc, low boilers and high boilers 5 by removing the low boilers and the high boilers to obtain pure DMAc in one of the column configurations listed hereinbelow: (I) a main column (MC) wit...