Sökning: "Martin Ragnar"
Hittade 4 avhandlingar innehållade orden Martin Ragnar.
1. Radical formation under acidic TCF-bleaching conditions
Sammanfattning : .... LÄS MER
2. On the importance of radical formation in ozone bleaching
Sammanfattning : .... LÄS MER
3. The initial phase of the sodium bisulfite pulping of softwood dissolving pulp
Sammanfattning : The sulfite pulping process is today practised in only a small number of pulp mills around the globe and the number of sulfite mills that use sodium as the base (cation) is less than five. However, due to the increasing interest in the wood based biorefinery concept, the benefits of sulfite pulping and especially the sodium based variety, has recently gained a lot of interest. LÄS MER
4. Aspects of extended impregnation kraft cooking for high-yield pulping of hardwood
Sammanfattning : The long-term trend regarding wood is an increase in price. Because wood contributes to a large part of production costs, the efficient utilisation of wood is greatly desired to reduce production costs for kraft pulp producers. During the 1990s, the development of improved modified kraft cooking began, which led to higher yields. LÄS MER