发明名称 |
Process for preparation of cyclododecanone |
摘要 |
In the process for producing a cyclododecanone by isomerizing an epoxycyclododecane-containing starting material in the presence of an isomerization reaction catalyst containing lithium bromide and/or lithium iodide, in order to perform the reaction with high efficiency (high reaction rate) and high selectivity and stably produce a high-purity cyclododecanone in industry while maintaining a high-level reaction rate, the epoxycyclododecane-containing starting material is produced by contacting an epoxycyclododecadiene with hydrogen in the presence of a hydrogen-reduction catalyst and has a content of the hydroxyl group-containing cyclododecane compounds contained in the epoxycyclododecane-containing starting material controlled to 5 mol % or less.
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申请公布号 |
US6861563(B2) |
申请公布日期 |
2005.03.01 |
申请号 |
US20040486735 |
申请日期 |
2004.02.13 |
申请人 |
UBE INDUSTRIES, LTD.;EMS-CHEMIE AG |
发明人 |
SUGISE RYOJI;TANAKA SHUJI;DOI TAKASHI;NISHIO MASAYUKI;NIIDA SADAO;MATSUURA TSUNAO |
分类号 |
C07C45/58;(IPC1-7):C07C45/67 |
主分类号 |
C07C45/58 |
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