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pro vyhledávání: '"Tatiana M. Póvoas"'
Prebleaching of eucalypt kraft pulp with OP stages: Effect of an acid pretreatment or chelation step
Autor:
Licínio M. Gando-Ferreira, Ana P. V. Egas, M. Graça V.S. Carvalho, Tatiana M. Póvoas, Dina A.G. Angélico, Pedro E. G. Loureiro
Publikováno v:
June 2012. 11:31-38
We conducted a comparative evaluation of different treatments for the bleaching of eucalypt kraft pulps beginning with OP stages. The treatments tested were (1) an acid chelation stage with DTPA (OQP sequence); (2) a hot acid stage (AOP sequence); an