Preparation of highly pure methyl tert-butyl ether
First Claim
1. A process for preparing methyl tert-butyl ether having a purity of greater than 99.7% from technical grade methyl tert-butyl ether by fractional distillation, which comprises separating said technical grade methyl tert-butyl ether into a low boiler fraction comprising methyl tert-butyl ether, methanol and water, a middle fraction comprising methyl tert-butyl ether in a purity of greater than 99.7% and a high boiler fraction comprising tert-butyl alcohol and butene oligomers.
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Abstract
The invention relates to a process for preparing methyl tert-butyl ether (MTBE) in qualities which are suitable for organic syntheses and for use as a specialty solvent from MTBE in fuel quality.
41 Citations
11 Claims
- 1. A process for preparing methyl tert-butyl ether having a purity of greater than 99.7% from technical grade methyl tert-butyl ether by fractional distillation, which comprises separating said technical grade methyl tert-butyl ether into a low boiler fraction comprising methyl tert-butyl ether, methanol and water, a middle fraction comprising methyl tert-butyl ether in a purity of greater than 99.7% and a high boiler fraction comprising tert-butyl alcohol and butene oligomers.
Specification