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　UNI-QUAC　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.　(C)　2012　Elsevier　B.V.　All　rights　reserved.