Cyclohexanol　is　an　important　chemical　intermediate　in　nylon　production.　A　new　route,　using　a　cosolvent　for　cyclohexanol　production　by　direct　hydration　of　cyclohexene　in　a　reactive　distillation　column,　was　put　forward.　Liquid-liquid　equilibrium　(LLE)　data　for　the　ternary　system　water.　+.　1,4-dioxane.　+.　cyclohexanol　were　investigated　experimentally　at　1.　atm　over　the　temperature　range　of　(313.2-343.2).　K.　The　Othmer-Tobias　correlation　was　used　to　determine　the　reliability　of　the　experimental　tie-lines.　The　measured　LLE　data　were　compared　with　the　values　correlated　by　the　nonrandom　two-liquids　(NRTL)　and　improved　UNIQUAC　models.　It　was　found　that　both　the　NRTL　and　improved　UNIQUAC　models　could　provide　good　correlation　results　for　this　system.　The　NRTL　and　UNIQUAC　equations　were　fitted　to　the　experimental　data　with　a　root-mean-square　deviation　(RMSD%)　of　less　than　0.19　and　0.41,　respectively.　©　2012　Elsevier　B.V.