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Iron, Manganese and Copper Equilibria with Wood Fibres in Single Salt Aqueous Suspensions
Author(s) -
Susilo Robin,
Chandraghatgi Rajeev,
Li XiaoSen,
Englezos Peter
Publication year - 2005
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450830317
Subject(s) - chemistry , manganese , aqueous solution , copper , kraft paper , metal , nuclear chemistry , polymer chemistry , materials science , composite material , organic chemistry
Ions of Fe, Mn and Cu were introduced into suspensions of protonated or metal‐free fibres and the equilibrium concentration of each metal in the fibre and surrounding solution was measured. The results were compared with the Donnan equilibrium model. Mn and Cu concentrations on the fibres were found to be pH dependent and in agreement with the model. An increased amount of Fe on the Kraft pulp fibres was found and attributed to iron containing precipitates trapped within the fibres. Precipitates in mechanical pulps had a very small amount (1‐2 wt%) of iron.