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Journal of Applied Electrochemistry

, Volume 21, Issue 1, pp 21–27 | Cite as

The electrochemical synthesis of aminonitriles I. H-cell studies with adiponitrile and azelanitrile

  • Y. Song
  • P. N. Pintauro
Papers

Abstract

Adiponitrile and azelanitrile were electrochemically hydrogenated to their corresponding aminonitriles in a divided H-cell using Raney nickel powder as the cathode material. The effects of current, temperature, and solvent/supporting electrolyte composition on product selectivities were investigated. Syntheses of the fully hydrogenated diamine by-product increased with increasing current and solution temperature. When a 0.8 M adiponitrile/alcohol/water/ammonium actetate electrolyte was hydrogenated at temperatures of 35–45°C, 6-aminocapronitrile selectivities in the range of 79–97% and current efficiencies of 50–60% were obtained. The optimum applied current was 60 mA for each 2.5 g of catalyst (an apparent current density of 4.8 mA cm−2). For the case of azelanitrile, reaction selectivities for the partially hydrogenated 9-aminononanenitrile product ranged from 80–93%.

Keywords

Ammonium Physical Chemistry Nickel Diamine Cathode Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • Y. Song
    • 1
  • P. N. Pintauro
    • 1
  1. 1.Department of Chemical EngineeringTulane UniversityNew OrleansUSA

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