The solvent extraction method was used to obtain trans-1,2-cyclohexanediol in the synthesis from cyclohexene and hydrogen peroxide.On the basis of the phase equilibrium for trans-1,2-cyclohehanediol in methyl acetate,by using the laser monitoring technique,the solubilities of trans-1,2-cyclohexanediol in methyl acetate and water mixed solvent were measured in a larger temperature interval.A solubility UNIFAC model was proposed.The model was verified with experimental data in ternary systems of water+methyl acetate+trans-1,2-cyclohexanediol,and the solubilities calculated with the model were in good agreement with experimental data.
Using a laser observation technique,the solubilities of trans-1,2-cyclohexanediol in butyl acetate+wa- ter were measured at the temperature range from 298.15K to 323.15K by a synthetic method at atmospheric pres- sure.It is shown that the solubilities of trans-1,2-cyclohexanediol in butyl acetate+water were affected greatly by the proportion of butyl acetate and water,and presented maximum value at given temperature.The UNIFAC model was used to correlate the experimental data.The average relative deviation(ARD)between experimental and calculated values is 3.03%.
