METHYLAMINES PURIFICATION PROCESS

摘要

The distillative refining of methylamines containing higher amine impurities which accumulate in the distillation column (1), tending to cause flooding and product contamination, is improved by purging the column at the point (3) the impurities concentrate, mixing the purge with water to form two phases (5,6), separating the phases and recycling the water phase for recovery of its methylamine content.