Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/4206
Title: PER ACID BLEACHING OF KRAFT PULP
Authors: Kumar, Ajay
Keywords: PULP
ACID
ECF
TCF
Issue Date: 1998
Abstract: Per acids may prove viable for use in ECF and TCF bleaching sequences.In the present study the peracetic acid was used as a delignifying agent . Peracetic acid was used to delignify the oxygen treated and untreated pulp in ECF & TCF sequences. A comparison was done between Peracetic acid delignification and conventional Oxygen delignification stage. The results indicates that the extent of delignification by Pa stage is lower than 0 stage. The 0 stage gives brightness, viscosity equivalent to Pa stage followed by Eop stage. However the COD load of 0 stage was found higher than Pa stage. P stage or D 9- stage used after Pa Eop stages improved the brightness by 14-20 points and after 0 Pa stages by 13-14 points with reduction in pulp viscosity by 14-20% and 30 % respectively.
URI: http://hdl.handle.net/123456789/4206
Other Identifiers: M.Tech
Appears in Collections:MASTERS' DISSERTATIONS (Paper Tech)

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