METHOD OF PURIFICATION OF N-METHYLMORPHOLINE-N-OXIDE WATER SOLUTIONS

摘要

This patent describes the procedure related to the purification of water solutions closed to N-methylmorpholine- -N-oxide, the cellulose spinning baths especially, where the above mentioned solution is initiated to have a contact with the absorption facility selected of the group including aluminium oxide, silicon dioxide, active carbon and after that the filtration is provided.