Catechol → Guaiacol

Participants

Reaction Conditions

Reaction Steps

The mixed catechol-methyl alcohol vapor delivered from the evaporator was super heated to a temperature of 230° C. by a heat exchanger using a heating medium, mixed with a mixed gas separately prepared from a boron compound as a component of an etherification (dehydration reaction) catalyst and methyl alcohol, and then fed, as a material vapor, into a gas phase reactor packed with a phosphorus-containing etherification catalyst (as disclosed in Japanese Unexamined Patent Publication No. 4-341,345, Example 1). In the reactor, catechol catalytically reacted with methyl alcohol at a reaction temperature of 270° C. under a reaction pressure of 0.35 kg/cm2G, to produce guaiacol. The resultant guaiacol-containing gas was delivered from the reactor, and cooled and condensed by a cooler. The condensed liquid was collected from the cooler and stored in a storage tank.

Provenance & Evidence