Method for the distillative processing of tetrahydrofuran

A process for reducing a butyl methyl ether content of tetrahydrofuran comprising:

• adding methanol to a tetrahydrofuran feed stream comprising butyl methyl ether to form a THF mixture;
• distilling the THF mixture in one or more distillation stages in a single separating apparatus;
• removing a top draw from an upper portion of the separating apparatus;
• and
• removing bottom draw from a lower portion of the separating apparatus;
• wherein
• a content of butyl methyl ether in % by weight in the top draw is greater than the content of butyl methyl ether in the THF mixture, and
• a content of butyl methyl ether in % by weight in the bottom draw is less than the butyl methyl ether content in the tetrahydrofuran feed stream.