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Elemental chlorine free

From Wikipedia, the free encyclopedia

Elemental chlorine free (ECF) is a technique that uses chlorine dioxide for the bleaching of wood pulp. It does not use elemental chlorine gas during the bleaching process and prevents the formation of dioxins and dioxin-like compounds, carcinogens. The traditional ECF sequence is DEopDEpD[1]: 14  using the common letter symbols for bleaching stages,[2] though many improved sequences are available.[1]: 15 

Totally chlorine free (TCF) is paper that does not use any chlorine compounds for wood pulp bleaching.

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Transcription

See also

References

  1. ^ a b Different Bleaching Configurations (PDF), National Council for Air and Stream Improvement, 2009
  2. ^ "PaperOnWeb description of bleaching sequences". Retrieved 2007-09-17.

External links

This page was last edited on 16 January 2021, at 04:09
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