Paper pulp from eucalyptus
- Publisher
- Elsevier Science
- Year
- 1912
- Tongue
- English
- Weight
- 65 KB
- Volume
- 173
- Category
- Article
- ISSN
- 0016-0032
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β¦ Synopsis
97
scratch hardness, loss of weight in a I per cent. acid solution, the amount of carbide, and microscopically. It is concluded that hardened steel always tends to change into a-iron and free cementite. Although this change proceeds imperceptibly at ordinary temperatures, it takes only a few seconds at 65 Β°0 C. and some hours at IOO Β° C.
π SIMILAR VOLUMES
Efficient delignification of Eucalyptus grandis organosolv pulp was achieved. The process, which was chlorine and sulphur free, removed 88% of the lignin (kappa number (KN) 65 to 8) with moderate viscosity loss (T/= 19 cP to 12 cP). The best sequence involved three photochemical stages in alkaline m