In order to determine the effect of bleaching conditions on the physical and optical properties of pulps during the bleaching of CTMP with H_2O_2, 48 bleaching trials were carried out. After the analysis of the data obtained, the optimum bleaching conditions were as follows: H_2O_2 ratio 2.5-3%, Na_2SiO_3 ratio 3%, NaOH ratio 3%, NaOH/H_2O_2 ratio 0.75, MgSO_4 rate 0.5%, reaction temperature 70ºC, EDTA rate 0.5%, reaction time 80 minutes and concentration 16%. Brightness, breaking length, burst and tear index of CTMP bleached with H_2O_2 were found to be 51.42%, 18.03%, 92.50% and 13.20% respectively, higher than those of unbleached CTMP.
USTA, MUSTAFA and TUTUŞ, AHMET (1999) "The Effect of Bleaching Conditions on the Physical and Optical Properties During the Bleaching of CTMP with Peroxide," Turkish Journal of Agriculture and Forestry: Vol. 23: No. 8, Article 23. Available at: https://journals.tubitak.gov.tr/agriculture/vol23/iss8/23