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Träfflista för sökning "WFRF:(Brelid Harald 1960) "

Sökning: WFRF:(Brelid Harald 1960)

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Numrering	Referens	Omslagsbild	Hitta
1.	Berglund, Annica, 1972, et al. (författare) Spatial distribution and chemical attachments of metal ions in spruce wood 1999 Ingår i: 10th International Symposium on Wood and Pulping Chemistry, Yokahama, Japan, June 7-10. ; 1, s. 90-94 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
2.	Berglund, Annica, 1972, et al. (författare) Spatial distribution of metal ions in spruce wood by synchrotron radiation microbeam X-ray fluorescence analysis 1999 Ingår i: Holzforschung. ; 53:5, s. 474-480 Tidskriftsartikel (refereegranskat)
3.	Bogren, Johannes, 1979, et al. (författare) Assessment of reaction kinetic models describing delignification fitted to well-defined kraft cooking data 2008 Ingår i: Nordic Pulp and Paper Research Journal. ; 23:2, s. 210-217 Tidskriftsartikel (refereegranskat)
4.	Bogren, Johannes, 1979, et al. (författare) Can the delignification rate be affected by previously applied cooking conditions? 2009 Ingår i: Nordic Pulp and Paper Research Journal. - 2000-0669 .- 0283-2631. ; 24:1, s. 25-32 Tidskriftsartikel (refereegranskat)
5.	Bogren, Johannes, 1979, et al. (författare) Controlled exchange of cooking liquor compositions during cooking: Effect on delignification and degradation reactions of carbohydrates 2008 Ingår i: 235th ACS National Meeting, April 6-10, New Orleans, LA USA. Konferensbidrag (refereegranskat)
6.	Bogren, Johannes, 1979, et al. (författare) Effect of Pulping Conditions on the Rates of Formation and Degradation of Hexenuronic Acid in Scots Pine 2008 Ingår i: Journal of Pulp and Paper Science. ; 34:1, s. 23-29 Tidskriftsartikel (refereegranskat)
7.	Bogren, Johannes, 1979, et al. (författare) Evaluating Reaction Kinetic Models Using Well-Defined Kraft Delignification Data 2007 Ingår i: International Symposium on Wood, Fibre and Pulping Chemistry 2007, CD-ROM. Konferensbidrag (övrigt vetenskapligt/konstnärligt)
8.	Bogren, Johannes, 1979, et al. (författare) Impact of dissolved sodium salts on kraft cooking reactions 2009 Ingår i: Holzforschung. - 1437-434X .- 0018-3830. ; 63:2, s. 226-231 Tidskriftsartikel (refereegranskat)abstract This study examined the effects of inactive ions - ions not reacting with wood - during kraft cooking, which thus far have received modest attention. Six different sodium salts were added to kraft cooking liquors at two different levels of alkalinities. Delignification as well as the formation and degradation of hexenuronic acid (HexA) were observed of Scots pine sapwood meal. The delignification rate was greatly affected by the presence of additional anions. Chloride ions had the greatest retarding effect, while the addition of polyacrylate ions had almost no effect. When carbonate, sulphate and lactate ions were added to the liquors, the delignification rates were in-between the series with chloride and polyacrylates ions. We suggest that the anions affect the solubility of lignin fragments in analogy to the Hofmeister effect observed in various macromolecular systems in the presence of dissolved salts. When the reactions involving HexA were examined, the opposite results were obtained. In that case, the highest reaction rates were in the presence of chloride ions, and the lowest rates were obtained when no extra ions were added, and the second lowest rates were obtained in the presence of polyacrylate ions. As for delignification, the cooking series containing carbonate, sulphate and lactate ions had a reaction rate in-between the series with the highest and lowest rates. The differences obtained with various inorganic ions can be qualitatively explained by the Donnan equilibrium theory and by the variation in activity coefficients of hydroxide ions. Findings imply that knowledge of kraft cooking is far from complete. The effects of inactive ions on reaction kinetics should also receive more attention. © 2009 by Walter de Gruyter.
9.	Bogren, Johannes, 1979, et al. (författare) Kinetics of delignification under constant kraft cooking conditions 2006 Ingår i: 9th European Workshop on Lignocellulosics and Pulp, August 27-30, 2006, Vienna, Austria. ; , s. 56-59 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
10.	Bogren, Johannes, 1979, et al. (författare) Kinetics of formation and degradation of hexenuronic acid in 2006 Ingår i: 9th European Workshop on Lignocellulosics and Pulp, August 27-30, 2006, Vienna, Austria. ; , s. 184-187 Konferensbidrag (övrigt vetenskapligt/konstnärligt)

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Typ av publikation: tidskriftsartikel (36); konferensbidrag (30); doktorsavhandling (1); licentiatavhandling (1)

Typ av innehåll: refereegranskat (47); övrigt vetenskapligt/konstnärligt (21)

Författare/redaktör: Brelid, Harald, 1960 (68); Theliander, Hans, 19 ... (28); Bogren, Johannes, 19 ... (15); Simonson, Rune, 1935 (9); Friberg, Tommy, 1949 (9); Westman, Gunnar, 196 ... (8); visa fler...; Saltberg, Anna, 1978 (8); Lund, Kristoffer, 19 ... (7); Köhnke, Tobias, 1978 (6); Dang, Binh, 1980 (6); de la Motte, Hanna, ... (4); Rindby, Anders, 1951 (3); Dernegård, Henric C ... (3); Lundqvist, Fredrik (3); Palme, Anna, 1986 (3); Hasani, Merima, 1978 (2); Engström, Per (2); Tomani, Per (2); Berglund, Annica, 19 ... (2); Östlund, Åsa, 1977 (2); Sundén, Annica (2); Nordstierna, Lars, 1 ... (1); Langer, Vratislav, 1 ... (1); Gellerstedt, Göran (1); Olsson, Krister (1); Berg, Erik (1); Lindgren, Karin (1); Berglin, Niklas, 196 ... (1); Eliasson, Anders (1); Idström, Alexander, ... (1); Theliander, Hans (1); de la Motte, Hanna (1); Köhnke, Tobias (1); Tomani, P. (1); Hanson, Charlotta, 1 ... (1); Bialik, Marta Anna, ... (1); Sedin, Maria, 1972 (1); Moosavifar, Ali Seid ... (1); Wadsborn, Rickard (1); Karlsson, Sofi, 1980 (1); Vincze, Laszlo (1); Vekselius, Henrik (1); Fredrik, Lundqvist (1); Karlfeldt Fedje, Kar ... (1); Strömberg, Eva-Lena (1); Nåhem, Kristoffer (1); Gellerstedt, Göran L ... (1); Sjostrom, K (1); Fock, Helena, 1979 (1); Peterson, Anna, 1988 (1); visa färre...

Lärosäte: Chalmers tekniska högskola (68); Kungliga Tekniska Högskolan (3); RISE (3)

Språk: Engelska (68)

Forskningsämne (UKÄ/SCB): Teknik (64); Naturvetenskap (8); Lantbruksvetenskap (3)

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