Sökning: "waterglass"
Hittade 2 avhandlingar innehållade ordet waterglass.
1. Development of new nanomaterials syntheses for mesostructured TiO2 and SiO2
Sammanfattning : Mesostructured materials is a class of materials within the concept nanomaterials andcharacterized by structural features on the length scale 2-50 nm. This group of materials isinteresting for several applications such as, membrane and separation technology, heterogeneouscatalysis, controlled release, adsorption of pollutants, solar energy conversion, electrode materialsetc. LÄS MER
2. Nuclear magnetic resonance studies on bentonite in complex mixed systems
Sammanfattning : In this work 23Na MAS NMR was validated as a successful quantitative method for studies of exchanging sodium in bentonites useful, in particular, for studies of ion-exchange kinetics. Na-enriched bentonites equilibrated in a re-circulated process water at iron-oxide pelletizing plants may acquire properties of Ca-bentonites after already 20 minutes of the equilibration time, since >50 % of sodium ions will be exchanged by calcium ions during first minutes of bentonite placed in contact with the process water. LÄS MER