Recovery of propylene glycol mono t-butoxy ether

Details Recovery of propylene glycol mono t-butoxy ether Recovery of propylene glycol mono t-butoxy ether

1986-09-22

1987-06-23

Bascomb, Wilbur

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 4, 203 77, 203 81, 203DIG19, 568678, 568699, B01D 310, C07C 4142

Patent

active

046750827

ABSTRACT:
Preparation and recovery of 1-t-butoxy-2-propanol in a high state of purity from a crude etherification reaction product obtained by reaction of isobutylene with propylene glycol in the presence of a solid resin etherification catalyst is disclosed. The crude reaction product is distilled to obtain a 1-t-butoxy-2-propanol-containing distillate, thereby leaving propylene glycol as bottoms; the condensed distillate is then further distilled to separate 1-t-butoxy-2-propanol as an overhead product from higher boiling materials.

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patent: 4144138 (1979-03-01), Rao et al.
patent: 4340447 (1982-07-01), Laverick et al.
patent: 4544453 (1985-10-01), Gupta

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