Mineral recovery from Lake Katwe brines using isothermal evaporation
2013 (English)In: International Mine Water Association Annual Conference 2013: Reliable Mine Water Technology / [ed] Adrian Brown, Linda Figueroa, Christian Wolkersdorfer, IMWA International Mine Water Association , 2013, 855-860 p.Conference paper (Refereed)
Lake Katwe is a saline lake within the East African Rift system in Western Uganda, with a rich source of mineral salts. The present work aims at evaluating possibilities of future salt extraction from the lake deposit. An isothermal evaporation experiment was conducted on the lake brines. The precipitated salts were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods. Various economic salts such as thenardite, gypsum, mirabilite, burkeite, hanksite, anhydrite, trona, halite, nahcolite, thermonatrite, and soda ash precipitate from the lake brines. The experiments also reveal the sequence of mineral salt precipitation in the order sulfates→chlorides→carbonates.
Place, publisher, year, edition, pages
IMWA International Mine Water Association , 2013. 855-860 p.
Lake Katwe, Brine, Isothermal Evaporation, Sulfate salts, Chloride salts, Carbonate salts, XRD, SEM
Chemical Process Engineering
IdentifiersURN: urn:nbn:se:kth:diva-132376ISBN: 978-0-615-79385-6OAI: oai:DiVA.org:kth-132376DiVA: diva2:659787
IMWA2013 International Mine Water Association - Reliable Mine Water Technology, Golden, Colorado, USA, 4-9 August 2013
FunderSida - Swedish International Development Cooperation Agency
QC 201310282013-10-282013-10-282015-12-17Bibliographically approved