Sustainable Flotation Process with Lignin Collectors for Selective Extraction of Base Metals
Aimed at developing a sustainable flotation process using lignin collectors for selective extraction of base metals, the LIGNOFLOT project focuses on enhancing the economic and environmental impact of the Swedish forest and mining industry. Through the production, preparation, and flotation testing of lignin collectors, the project aims to optimize the process and assess its technical, environmental, and economic viability for potential scale-up.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
E N D
Presentation Transcript
Organosolv lignin hydrophobic nanoparticles as low-carbon-footprint biodegradable flotation collectors LIGNOFLOT 2019-05-01-2022-04-30 Project coordinator Ulrika Rova, Biochemical Process Engineering, Lule Tekniska Universitet Programdag 2019 Partners Paul Christakopolous, Leonidas Matsakas, Kate ina Hr zov , LTU Anders Sand, Boliden Henrik Nordberg, Nouryon Ann-Britt Edfast, Sveaskog
Aim and objectives Demonstrate a sustainable flotation process with low-carbon-footprint for selective extraction of base metals using biodegradable lignin Provide a cost-competitive flotation concept that can generate additional income for the Swedish forest and mining industry by increasing the economic and environmental impact on the overall production chain. Well characterized lignin to be used as collectors Established separation process for selective extraction of base metals Determine the efficiency of lignin as flotation collectors on various ores and correlation of their efficiency on specific metals with the chemical characteristics of the lignin Optimized flotation process - pilot scale test and evaluation towards TRL 7 Scale-up potentials of the process including environmental assessment of the process
Concept WP2 (M1-12) Production of lignin collectors from softwood and hardwood WP3 (M4-18) Preparation of lignin collectors with different physicochemical and structural properties WP4 (M13-33) Flotation of valuable minerals from industrially relevant ores and optimization of flotation parameters at 1-3 L WP5 (M31-35) Scale-up potential of the new flotation process examined by performing flotations at 30 L at chosen conditions WP6 (M31-36) Technical, environmental and economic assessment of the lignin based collectors
Results so far WP2 Lignin collectors obtained from birch and spruce (pine pending) Partially characterisation (NMR, molecular weight, composition) WP3 Lab-scale production of lignin collectors Identified process conditions to control collector size Improvement of the process to increase productivity
Coming activities Lignin collectors from WP3 will be tested as metal collectors using ores with various targeted metals. Optimization of flotation parameters at 1-3 L Toxicity tests of the lignin collectors Perform surface characterization on the lignin collectors as well as the properties of the foam produced The potentials of scaling-up the flotation will be examined by performing selected flotations at a 30 L flotation cell
