Number | Name | Date | Kind |
---|---|---|---|
2639987 | Sloman | May 1953 | |
4578149 | Fagerlund | Mar 1986 | |
4690731 | Hartler et al. | Sep 1987 | |
5066362 | Meredith | Nov 1991 | |
5183535 | Tikka | Feb 1993 | |
5522958 | Li | Jun 1996 | |
5635026 | Kettunen et al. | Jun 1997 |
Number | Date | Country |
---|---|---|
WO 9411566 | May 1994 | WOX |
WO 9532331 | Nov 1995 | WOX |
Entry |
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Paper and Timber vol. 79/No. 4/1997; "Effect of cooking stage EA concentration profiles on softwood kraft pulping" by Kettunen, Ramark, Kimmo Harsia, and Kaj Henricson, pp. 232 through 234, and 236 through 239. |
Svensk papperstidning nr 15 1978; "Extended delignification in kraft cooking--a new concept" by Nils Hartler; pp. 483 and 484. |
Kettunen et al. "Effect of Cooking . . . kraft Pulping", Paper and Timber, vol. 79, pp. 232-239, Apr. 1997. |