JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2003, Vol. 27 ›› Issue (01): 41-44.doi: 10.3969/j.jssn.1000-2006.2003.01.010

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A Study on Preparation of Cis-pinane in Pinene Hydrogenation

BI Mengyu,ZENG Tao   

  1. College of Chemical Engineering Nanjing Forestry University,Nanjing 210037,China
  • Online:2003-02-18 Published:2003-02-18

Abstract: In order to make high yield cispinane,the reaction of hydrogenation from pinene to pinane was studied,in which two series of Raney Ni prepared from two different alloy materials,different reaction temperatures,hydrogen pressures,solvents.Purities of pinene made up of αpinene and βpinene,and dosage of catalysts were taken into consideration.As a result,a kind of Raney Ni of ideal activity and selectivity in pinene hydrogenation was determined.Based on hydrogenation experiments,the reaction condition of pinene hydrogenation was optimized.The optimum parameters on how to get high yield cispinane in pinene hydrogenation were determined as follows:(1)the reaction temperature was 100 ℃;(2)the hydrogen pressure was 6.0 MPa;(3)the solvent was nbutanol;(4)the purity of αpinene in raw material of pinene was at least 85%;(5)the dosage of the catalyzer was 3%.Under such conditions above mentioned,the transportation of pinane from pinene was nearly 100%,and the final yield of cispinane could be maintained more than 95%.

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