da Silva, C.N.; Nazareth, L.P.T.; de Freitas, M.E.; Ladeira, A.C.Q. Sulphuric Acid Digestion of Anatase Concentrate. Mining2024, 4, 79-90.
da Silva, C.N.; Nazareth, L.P.T.; de Freitas, M.E.; Ladeira, A.C.Q. Sulphuric Acid Digestion of Anatase Concentrate. Mining 2024, 4, 79-90.
da Silva, C.N.; Nazareth, L.P.T.; de Freitas, M.E.; Ladeira, A.C.Q. Sulphuric Acid Digestion of Anatase Concentrate. Mining2024, 4, 79-90.
da Silva, C.N.; Nazareth, L.P.T.; de Freitas, M.E.; Ladeira, A.C.Q. Sulphuric Acid Digestion of Anatase Concentrate. Mining 2024, 4, 79-90.
Abstract
Abstract
The processing of anatase ores by sulfuric acid digestion is well known for its low titanium dissolution yields, which makes the process economically and technically unfeasible. Generally, to enhance the dissolution of titanium from anatase, thermal processes along with acid and/or alkaline leaching are necessary. Few existing works report yields of direct digestion of anatase with sulfuric acid <48%. This study investigated the sulfuric digestion of anatase and yields around 80% were obtained at relatively mild conditions such as temperature at 220°C, sulfuric acid/concentrate ratio of 1:2 and 3 hours of reaction. A comprehensive characterization of anatase ore was also presented.
Keywords
anatase; titanium; sulphation; phosphorus
Subject
Engineering, Metallurgy and Metallurgical Engineering
Copyright:
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