Liquid Phase Amination of 1-Bromobutane under High Temperature and High Pressure

Chiaki Yokoyama, Yoshinori Mabuchi, Naomi Shibasaki-Kitakawa, Shinji Takahashi

Research output: Contribution to journalArticle

Abstract

The animation of 1-bromobutane in an aqueous ammonia solution of 50 wt% ammonia using a high-pressure coiled-tube flow reactor was examined. The temperature range studied was from 343 to 403 K and the reaction pressure was 13 MPa. The major reaction products were n-butylamine ana di-n-butylamine, but higher amines, such as tri-n-butylamine, were detected only in trace amounts. Based on a second order consecutive reaction model for the formation of n-butylamine and di-n-butylamine, the reaction rate of amination of 1-bromobutane was determined. Arrhenius parameters for the rate constant of the first reaction step to form n-butylamine were found to have an activation energy of 87.9 kJ/mol and pre-exponential factor of 1.03 × 109 mol/(dm3 s), and those for the second reaction step to form di-n-butylamine were found to have the activation energy of 84.3 kJ/mol and pre-exponential factor of 4.30 × 109 mol/(dm3 s).

Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalSekiyu Gakkaishi (Journal of the Japan Petroleum Institute)
Volume43
Issue number2
DOIs
Publication statusPublished - 2000 Mar

Keywords

  • 1-Bromobutane
  • Amination
  • Amine
  • High pressure
  • Kinetics
  • Nitrogen compound

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

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