한국펄프종이공학회:학술대회논문집 (Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference)
- 한국펄프종이공학회 2006년도 PAN PACIFIC CONFERENCE vol.2
- /
- Pages.295-303
- /
- 2006
Improvement of Hardwood Pulp Yield in Continuous Kraft Cooking and Estimation of Pulp Yields Pulp yields of isothermal cooking with polysulfide and anthraquinone
- Ohi, Hiroshi (Graduate School of Life and Environment Sciences, University of Tsukuba) ;
- Yokoyama, Tomoya (The University of Tokyo)
- 발행 : 2006.06.06
초록
The pulp yield was improved by about 4.5-5% when polysulfide (PS) and anthraquinone (AQ) were added to the kraft cooking liquor (white liquor). The exchange of the black liquor with fresh white liquor further increased the yield. The highest pulp yield was obtained when the PS cooking liquor containing 70% of total active alkali (AA) and 100% of AQ was used from the beginning of the reaction and the black liquor was exchanged with fresh white liquor containing the residual 30% of AA just after temperature reached
키워드