Production of manganese (II) sulphate from low-grade manganese ores

Autor:	S. K. Tobia, M. A. Messiha, R. I. Razouk
Rok vydání:	2007
Předmět:	inorganic chemicals chemistry digestive oral and skin physiology Inorganic chemistry medicine chemistry.chemical_element Ferric Manganese Contamination Sulfur respiratory tract diseases Nuclear chemistry medicine.drug
Zdroj:	Journal of Applied Chemistry. 14:105-108
ISSN:	1934-998X 0021-8871
DOI:	10.1002/jctb.5010140301
Popis:	A new method is described for the production of manganous sulphate from low-grade manganese ores. The ore is first treated with a calculated amount of concentrated sulphuric acid at 200–220° to form manganic and ferric sulphates, and then heated at 500–640° for 90 min. The percentage conversion to manganous sulphate reaches 80, with almost 100% utilisation of sulphur, and contamination with iron is low. An explanation is suggested for the rǒle played by iron in increasing both manganese conversion and efficiency of sulphur utilisation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8a168bb07e91fdc952bab330473cc5e https://doi.org/10.1002/jctb.5010140301 Zobrazit plný text záznamu