1501-82-2Relevant articles and documents
Bank,Platz
, p. 2097,2100 (1973)
Studies on partial hydrogenation of 1,5,9-cyclo-dodecatriene towards cyclo-dodecene
Gaube,David,Sanchayan,Wuchter,Klein
, p. 21 - 27 (2011)
The selective hydrogenation of 1,5,9-cis,trans,trans-cyclo-dodecatriene (1,5,9-ctt-CDT) towards cyclo-dodecene (CDE) depends strongly on the pressure of hydrogen, respectively the hydrogenation rate. High yields of CDE (>90%) can only be reached at extremely low hydrogen pressure. In order to elucidate this exceptional reaction performance the course of reaction has been studied for a wide range of hydrogen pressure, 0.01>pH2>2.5MPa, taking into consideration data of other research groups. The CDT hydrogenations were discontinuously carried out in liquid phase on Pd/Al2O3 at T = 353 K. The resulting hypothesis of this study is that the very low reaction rate at low pH2 is necessary in order to realize a dense surface coverage of 1,5,9-CDT and 1,5-cyclo-dodecadiene (CDD) isomers where these molecules show adsorption on Pd via two double bonds so that readsorption of formed CDE and subsequent hydrogenation to cyclo-dodecane (CDA) is hardly possible. On the whole this new hypothesis on the reaction course of CDT hydrogenation gives a sound and fully consistent view on this rather complicated reaction.
Method for Preparing Cyclododecene and Synthesis Device Therefor
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Paragraph 0082-0119, (2021/03/13)
A method for preparing cyclododecene and a synthesis device therefor, of the present invention, remarkably increase the conversion ratio of cyclododecatriene and selectivity of cyclododecene, can minimize the costs required for equipment and processing, are practical, reduce processing time, and are industrially advantageous to mass production in comparison with a conventional method and device.
METHOD FOR MANUFACTURING CYCLODODECANONE AND APPARATUS FOR MANUFACTURING THE SAME
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Paragraph 0082-0083, (2020/05/14)
A method for manufacturing cyclododecanone according to the present invention has an effect of having a significantly high conversion rate of cyclododecene and selectivity of cyclododecanone, can minimize the cost used for equipment and processes, is practical, and has an advantageous effect on industrial mass production compared to the prior art by significantly reducing a reaction residence time and a required reaction volume of a reactor.COPYRIGHT KIPO 2019