| 摘要 |
The present invention relates to a process for the purification of pivalolactone from a mixture of pivalolactone and isobutyric acid by vacuum extractive distillation utilizing an organic extraction solvent which may be completely miscible with both other components. A preferred extraction solvent is 2-ethylhexanoic acid. The technique is functional for wide variations in the composition of the mixture of the two components and over a broad range of temperatures.
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