The vapour phase Beckmann rearrangement of cyclohexanone oxime to epsilon -
Caprolactum over silicoaluminophosphate (MSAPO-5, MSAPO-11) and MZSM-5 has
been carried out. The yields of epsilon -Caprolactum were 72.0 and 81.5% at
96.0 and 100% conversion over ZnSAPO-11 and TiSAPO-11 molecular sieves, re
spectively.