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Found 4 swedish dissertations matching the above criteria.

2. 1. Biosynthesis, interactions, and structure of native lignin

   Author : Ioanna Sapouna; Lauren S. McKee; Francisco Vilaplana; Claudia Crestini; KTH; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; lignin; biomass valorization; extraction; tissue culture; lignin nanoparticles; wood aerogels; lignin; biomassavalorisering; extraktion; vävnadsodling; lignin nanopartiklar; trä aerogeler; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : Wood biomass is an important resource in the development ofstrategies towards replacement of fossil-based materials. Woodcomprises cellulose, hemicelluloses and lignin, in amounts thatvary between species. READ MORE

4. 2. Potential of Organosolv Lignin Nanoparticles as a Sustainable Flotation Reagent : Towards a Low-Carbon Footprint Mining Industry

   Author : Katerina Hruzova; Ulrika Rova; Saija Luukkanen; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organosolv lignin particles; Nanoparticles; Flotation reagent; Copper recovery; Biokemisk processteknik; Biochemical Process Engineering;

   Abstract : The green transition is driving a steep increase in the demand for minerals, which has put the focus on more responsible and sustainable mining practices as there is a growing pressure on mining operations to minimise their environmental footprint, mitigate risks in neighbouring communities, and decrease the consumption of natural resources. In 2022, mineral froth flotation was used to recover 18 million tonnes of copper from copper ore, accounting for 80% of total copper mine output. READ MORE

5. 3. Colloidal Processing and Alignment of Wood-Based Dispersions and Hybrid Functional Foams

   Author : Seyed Ehsan Hadi; Lennart Bergström; Daniel Söderberg; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood-based nanomaterials; process-structure-property relationships; nanocellulose; lignocellulose nanofibers; rheology; small-angle X-ray scattering; lignin; tannic acid; unidirectional ice-templating; foams; aerogels; sustainability; träbaserade nanomaterial; process-struktur-egenskapsrelationer; nanocellulosa; lignocellulosananofibrer; reologi; småvinkelröntgenstrålning; lignin; garvsyra; riktad isstrukturering; skum; aerogeler; hållbarhet; materialkemi; Materials Chemistry;

   Abstract : This thesis presents novel methods and approaches for designing, preparing/fabricating, and characterizing wood-based nanomaterials. It investigates how modifications in structure, process variables, and composition can enhance functional properties. READ MORE

6. 4. Valorization of Kraft Lignin by Fractionation and Chemical Modifications for Different Applications

   Author : Selda Aminzadeh; Mikael Lindström; Hasan Jameel; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lignin Valorization- LignoBoost Lignin-Clean Flow Black Lignin- Characterization-Chemical modifications-Fractionation-applications; Chemical Engineering; Kemiteknik;

   Abstract : AbstractLignin is one of the most abundant biopolymers. Approximately 70 million tons of technical lignin is generated annually, but only little is used for products other than energy. The complexity of lignin hinders full utilization in high-value products and materials. READ MORE