The selective removal of toner particles from repulped slurries by flotation: They react differently from spheres

Pulp and Paper Canada

Volumn 98, Issue 2, 1997, Pages 21-24

  Schmidt, D C ^a   Berg, J C ^a  

^a UNIVERSITY OF WASHINGTON   (United States)

Author keywords

Deinking; Flotation; Lasers; Particles; Prints; Removal; Reprographic papers; Selectivity; Shape; Toners

Indexed keywords

BUBBLES (IN FLUIDS); FLOTATION; HIGH SPEED PHOTOGRAPHY; MOTION PICTURES; PARTICLES (PARTICULATE MATTER); PULP; SLURRIES;

HIGH SPEED CINEMATOGRAPHY; TONER;

DEINKING;

EID: 0031061961     PISSN: 03164004     EISSN: None     Source Type: Trade Journal    
DOI: None     Document Type: Article

References (16)

1. CARR, W.F. New trends in deinking technology - removing difficult inks from wastepaper. Tappi J. 74(2): 127-132 (1991).
2. QUICK, T.H., HODGSON, K.T. Xerography deinking - a fundamental approach. Tappi J. 69(3): 102 (1986).
3. SHRINATH, A., SZEWCZAK, J.T., BOWEN, I.J. A review of ink-removal techniques in current deinking technology. Tappi J. 74(7): 85-93 (1991).
4. SNYDER, B.A., SCHMIDT, D.C., BERG, J.C. Characterization and flotation studies of electrostatic inks. Progress in Paper Recycling 3 (November): 17-26 (1993).
5. EPPLE, M., BERG, J.C. The effect of adsorbed surfactants on the electrostatic properties and wettability of a photocopy toner, Progress in Paper Recycling 3(2): 52-57 (1994).
6. LEJA, J. Surface Chemistry of Froth Flotation, Plenum Press, New York, (1982).
7. JOHNSON, D.A., THOMPSON, E.V. Fibre and toner detachment during repulping of mixed office waste containing photocopied and laser-printed paper. Tappi J. 78(2): 41-46 (1995).
8. BORCHARDT, J.K., RASK, J.H., MILLER, J.D., YU, O. Toner ink particle morphology in air-sparged hydroryclone flotation deinking. Progress in Paper Recycling (submitted for publication) (1995).
9. SCHULZE, H.J. Hydrodynamics of bubble-mineral particle collisions. Mineral Processing and Extractive Metallurgy Review 5:43-76 (1989).
10. RALSTON, J. The influence of particle size and contact angle in flotation. Colloid Chemistry in Mineral Processing. Ed. J.S. Laskowski and J. Ralston , Elsevier, Amsterdam, p. 203-223 (1992).
11. ANFRUNS, J.F., KITCHENER, J.A. Rate of capture of small particles in flotation. Transactions of the Institution of Mining and Metallurg, Section C 86:C9-C15 (1977).
12. SCHMIDT, D.C., BERG, J.C. The effect of particle shape on the flotation of toner particles. Progress in Paper Recycling (submitted) (1995).
13. SPEDDEN, H.R., HANNAN, W.S. Attachment of mineral particles to air bubbles in flotation. Mineral Technology 12:T. P. 2354 (1948).
14. WHELAN, P.F., BROWN, D.J. Particle-bubble attachment in froth flotation. Transactions of the Institute of Mining and Metallurgy 65:181-192 (1956).
15. SCHULZE, H.J., GOTTSCHALK, G. Investigations of the hydrodynamic interaction between a gas bubble and mineral particles in flotation. Mineral Processing. Ed. J. Laskowski, Elsevier, Amsterdam, pp. 63-85 (1981).
16. BATCHELDER, R.F., LI, C.C. High speed photographic investigation of coal flotation. Advances in Fine Particles Processing, J. Hanna and Y. A. Attia (ed.). Elsevier, New York, pp. 335-344 (1990).