Patent ID: 9533933
Date: 2017-01-03
CPC Classifications: B01J,C07C,C07D,C08G

Claim:
1. A process for preparing cyclododecanone (CDON) by a reaction route I, comprising a. epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and b. rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein: CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a; the CDAN epoxide from step a comprises cyclododecane (CDAN) which is at least partly removed prior to the rearrangement in step b; and the CDAN removed prior to the rearrangement in step b is sent to a reaction route II for preparation of CDON, comprising: c. hydrogenation of cyclododecatriene (CDT) to CDAN, d. oxidation of CDAN to give a mixture comprising cyclododecanol (CDOL) and CDON and e. dehydrogenation of CDOL to CDON.