Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Kraft pulps"”.
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Changes in accessibility of cellulose for kraft pulps measured by deuterium exchange
… the chemical refining of wood, including kraft pulping, bleaching, drying, and further processing of the pulp. The characteristic physicochemical conditions in each subprocess were simulated with laboratory setups. In part, the analysis was based solely on literature. Cellulose …
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Two thermostable hemicellulases and their effects on wood pulps
… the hemicellulose components of various types of pulps and their effects on the bleachability of radiata pine kraft pulp were examined. The xylanase (two preparations) and mannanase had broad pH optima (6-7.5). The xylanases had temperature optima of 70°C (10 min assay) and the mannanase had an …
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Structural changes to Pinus radiata wood lignin during kraft pulping and bleaching
… of native (within wood) and residual (within pulps) lignins. A better understanding of the structure of lignin will assist the development of improved pulping and bleaching sequences. However, before this can be done, it is necessary to develop approaches to lignin isolation which provide more …