variety of conditions the temperature range for this method is preferably 100 u00b0 to 250 u00b0 c and is especially preferred to be in the range of about 125 u00b0 to about 300 u00b0 c pressures are preferably in the range upward from of 50 psig and are especially preferred to be in the range of about 100 to about 500 psig space velocities of the reactants typically range from about 0 5 to about 3 5 gram reactant mixture gram catalyst hour the method of this invention is further illustrated by the following examples the examples using ethylene glycol monomethyl ether as a reactant employ jeffersol em ether and the ethylene glycol monoethyl ether used is jeffersol ee ether both manufactured by texaco chemical company in the examples presented herein a feed of the indicated molar ratio was charged to a supply tank and kept under 100 psig pressure the feed was then pumped across 25 cc of catalyst at the conditions specified in tables i and ii the catalyst was comprised of 33 wt nafion 511 resin and 67 wt duolite es 473 resin in this manner the duolite resin allowed flow between the nafion particles thereby preventing plugging of the reactor an inert or active material could be used so long as it allows flow at the reaction temperature and pressure the purpose of such material is to act as a diluent to alleviate the packing of the soft nafion resin the liquid product was collected and analyzed by gas chromatography table i sup.