Sökning: "hydrogen-peroxide"
Visar resultat 1 - 5 av 179 avhandlingar innehållade ordet hydrogen-peroxide.
1. Organic electronic materials for hydrogen peroxide production
Sammanfattning : Hydrogen peroxide (H2O2) is an important oxidant, used in various fields of industry, such as paper manufacturing, production of polymers, detergents, and cosmetics. Considering that the molecule degrades only to H2O and O2, it is regarded as a green chemical. LÄS MER
2. Ligniners reaktioner med alkalisk väteperoxid
Sammanfattning : Under alkaline conditions hydrogen peroxide can be used either as a 1ignin-degrading or a 1ignin-preserving bleaching agent. If heavy metal ions are present and/or silicate is absent in the reaction medium, hydrogen peroxide decomposes via hydroxyl radicals and superoxide ions to oxygen and water. LÄS MER
3. Influence of acid hydrogen peroxide treatment on refining energy and TMP properties
Sammanfattning : The potential of using acid hydrogen peroxide under Fenton conditions to lower the electrical energy consumed during the production of Black spruce (Picea mariana) thermomechanical pulp (TMP) was investigated. The chemical system, which consisted of ferrous sulphate, hydrogen peroxide and optionally an enhancer (3,4-dimethoxybenzyl alcohol, ethylenediaminetetraacetic acid or oxalic acid/sodium oxalate), was evaluated as an inter-stage treatment where the primary refiner was used as a mixer. LÄS MER
4. Enzymatic degradation of hydrogen peroxide in a recycled paper pulp mill : characterization of hydrogen peroxide degrading enzymes and studies of conventional control strategies
Sammanfattning : .... LÄS MER
5. Pretreatment of bagasse with sodium hydroxide and hydrogen peroxide in chemimechanical pulping
Sammanfattning : .... LÄS MER