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Chemistry of Natural Compounds

, Volume 17, Issue 5, pp 470–473 | Cite as

Ion-exchange properties of ammoniated lignin

  • Yu. N. Forostyan
Article
  • 23 Downloads

Abstract

The oxidative ammonolysis of hydrolysis lignin from sunflower husks has given ion-exchange materials with amphoteric properties. The greatest total exchange capacity of the sample with respect to 0.1 N caustic soda solution amounted to 11.5 meq/g, and with respect to 0.1 N hydrochloric acid solution to 0.6 meq/g. The processes of ion exchange with heavy-metal cations are accompanied by complex formation. The bond of the metal cations with the lignin in the complexes is effected through nitrogen and the oxygen of a nonalcoholic group.

Keywords

Hydrochloric Acid Solution Caustic Soda Dimethyl Sulfate Hydrolysis Lignin Caustic Soda Solution 

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Copyright information

© Plenum Publishing Corporation 1982

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  • Yu. N. Forostyan

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