Official Journal of the Japan Wood Research Society
Table 3 Properties of prehydrolysis kraft and soda-AQ pulps obtained under the same conditions
Cooking method | AA dosage (%)a | Yield (%) | Kappa number | Brightness (% ISO) | Viscosity (mPa s) | Glucan (%)b | Xylan (%)b | HexA content (mmol/kg) |
|---|---|---|---|---|---|---|---|---|
Prehydrolysisc kraft | 15 | 42.9 | 8.0 | 47.2 | 70.8 | 81.9 | 4.6 | 5.1 |
Prehydrolysisc kraft | 18 | 41.7 | 6.5 | 49.5 | 66.8 | 85.8 | 4.1 | 5.1 |
Prehydrolysisc soda-AQ | 15 | 42.2 | 9.0 | 45.3 | 75.1 | 79.0 | 4.5 | 4.4 |
Prehydrolysisc soda-AQ | 18 | 41.1 | 8.2 | 47.5 | 68.0 | 83.3 | 3.9 | 4.1 |