Selective transition-metal catalysis of oxygen delignification using water-soluble salts of polyoxometalate (POM) anions. Part I. Chemical principles and process concepts

Ira A. Weinstock, Rajai H. Atalla, Richard S. Reiner, Carl J. Houtman, Craig L. Hill

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

Polymeric metal-oxide anion complexes (polyoxometalates) may provide a means for using transition metals and oxygen (O2) to selectively delignify wood or wood pulp in effluent-free (closed) mills. The development of this chemistry, and associated process concepts, evolved from the observation that certain fungi use transition metals (Cu, Fe and Mn) to selectively transfer electrons from lignin to oxygen. Chemical, physicochemical and engineering issues pertaining to the development of aqueous transition-metal systems for selective delignification, and for mill closure, are outlined in this brief introduction to the title technology.

Original languageEnglish
Pages (from-to)304-310
Number of pages7
JournalHolzforschung
Volume52
Issue number3
DOIs
StatePublished - 1 Jan 1998
Externally publishedYes

Keywords

  • Bleaching
  • Delignification
  • Kraft pulp
  • Lignin
  • Oxidation
  • Oxygen
  • Polyoxometalate
  • Transition metal
  • Wood pulp

ASJC Scopus subject areas

  • Biomaterials

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