D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 11/00 (2006.01)
Patent
CA 2430389
Oxidized white liquor is heat treated to increase the concentration of PSUV measured at 285 or 286 nm or PSVIS measured at 416 nm and the PSUV/PSGR or PSVIS/PSGR ratio, whereby the content of active polysulphide in the total polysulphide is increased which active polysulphide can be exploited to increase pulp yield in Kraft pulping.
Dans la présente invention, de la lessive blanche oxydée est traitée par la chaleur pour accroître la concentration de PS¿UV ?mesuré à 285 ou 286 nm ou de PS¿VIS ?mesuré à 416 nm et le rapport PS¿UV?/PS¿GR? ou PS¿VIS?/PS¿GR? , de telle sorte que la teneur en polysulfure actif dans le polysulfure total soit augmentée, ledit polysulfure actif pouvant être exploité pour augmenter la production de pâte dans la formation de pâte à papier kraft.
Dorris Gilles Marcel
Hu Thomas Qiuxiong
Leclerc Denys Francois
Page Natalie
Uloth Victor Charles
Dorris Gilles Marcel
Fpinnovations
Hu Thomas Qiuxiong
Leclerc Denys Francois
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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