Sodium borohydride assisted hydrogen peroxide bleaching process for mechanical pulps

Appita Journal

Volumn 57, Issue 5, 2004, Pages 377-380

  Wang, Shuyu ^a   Li, Zhiqing ^b   Ni, Yonghao ^c   Zhang, Eric ^d  

^a Eurocan Pulp and Paper Co   (Canada)

^b IRVING PULP AND PAPER LTD   (Canada)

^c UNIVERSITY OF NEW BRUNSWICK   (Canada)

^d Parque Industrial 'La Cantueña'   (Sweden)

Author keywords

Borohydride; Mechanical pulps; Pr process; Peroxide bleaching

Indexed keywords

BLEACHING; CHELATION; DECOMPOSITION; HYDROGEN PEROXIDE; IONS; PH EFFECTS; SAMPLING; SODIUM COMPOUNDS;

BOROHYDRIDE; INDUSTRIAL SOLUTION; PR PROCESS; SOLID CONTENT;

MECHANICAL PULP;

CHELATION; CHEMICAL DEGRADATION; HYDROGEN PEROXIDE; IONS; MECHANICAL PULPS; PEROXIDE BLEACHING; PH; SODIUM BOROHYDRIDE;

EID: 5144223338     PISSN: 10386807     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (14)

1. Smedberg, G.E. and Del, W. - US. Patent 3,100,732, (1963).
2. Loras, V. and Soteland, N. - High brightness bleaching of mechanical pulp, Norsk Skog. 26(20):255(1972).
3. Joachimides, T. - High brightness mechanical pulps, Proc. TAPPI Pulping Conf., Seattle, p.131 (1989).
4. Pangalos, G., Skothos, A. and Liebergott, N. - A pilot plant scale comparison of PP and PRP brightening of low-freeness CTMP, Pulp Pap. Can. 96(7):28(1995).
5. Pangalos, G., - A critical comparison of PRP and PP brightening of low freeness pulp, Proc. 82nd Annual Meeting, Technical Section, CPPA, p.A7 (1996).
6. Leary, G. and Giampaolo, D. - U.S. Patent 5,611,889 (1997).
7. Gagne, C., Barbe, M.C. and Daneault, C. - Comparison of bleaching processes for mechanical and chemimechanical pulps, Proc. TAPPI Pulping Conference, New Orleans. p.497 (1988).
8. Lee, C-L, Hatton, J.V., Bomy, R.M., Hu, H-L. and Frost, D.C. - An X-ray photoelectron study of the reaction of metal ions with boronydride under reductive bleaching conditions, Tappi. J. 76(2):129 (1993).
9. Heitner, C., Bolker, H.I. and Jones, H. - How chromophores are generated by alkaline treatment of wood, Pulp Pap. Can. 76(4):80 (1975).
10. Zhang, L. and Gellerstedt, G. - The role of stilbene structures in photo-yellowing and the mechanism of photo-stabilization of high yield pulp by thiols, Proc. 7th ISWPC, Beijing, p.759 (1993).
11. Leary, G. and Giampaolo, D. - Darkening of TMP during its bleaching by alkaline peroxide, Proc. 9th ISWPC, p.D4-1 (1997).
12. Leary, G. and Giampaolo, D. - The darkening reactions of TMP and BTMP during alkaline peroxide bleaching, Proc. 84th Annual Meeting, Technical Section CPPA, p.A31 (1998).
13. Ju, Y., Ni, Y. and Ohi, H. - Improving peroxide bleaching of chemical pulps by stabilizing manganese, J. Wood Chem. Technol. 19(4):323 (1999).
14. Colodette, J.L., Rothenberg, S. and Dence C.W. - Factors affecting hydrogen peroxide stability in the brightening of mechanical and chemi-mechanical pulps, Part I, Hydrogen peroxide stability in the absence of stabilizing systems, J. Pulp Pap. Sci. 14(6):J126 (1988).