Magnus Törnqvist, Tapio Hurme, Jarl B. Rosenholm
The Effect of Pressure Steaming on the Steady State Ion Diffusion and Drift Speed in Wood
Summary
Diffusion tests were made in wood chips of northern pine (Pinus sylvestris), birch (Betula verrucosa) and spruce (Picea abies). The chips were pre-treated in two different ways, immersion into water and by steaming. The new results covering very high concentrations, 0.5 mol/dm3 up to 1.5 mol/dm3, of NaCl, NaOH and Na2S were recorded for both ways of pre-treating samples. The results were graphically compared, with the main emphasis on the differences between the immersed and the steamed samples. The differences were shown to be not only in the magnitude of the flow; clear differences in the concentration dependencies were also noticed. Spruce was more affected by the pre-steaming than pine and birch.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 55, 06/2001
Pages: 441 - 447
Show full article (external site)
Show all available items of this journal
Search
