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Bolidens Gruvaktiebolag
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Bolidens Gruvaktiebolag
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Publication of ES239048A1publicationCriticalpatent/ES239048A1/en
Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means
(AREA)
Abstract
A process for roasting arsenical minerals, preferably pyrites, according to the fluo-solid principle and forming a roasting gas with sulfur dioxide content and a finally divided roasting material, characterized in that a high temperature is maintained during roasting and a high concentration of sulfur dioxide and the reaction time between the finely divided ashes produced, consisting mainly of iron oxide, and the roasting gas, which is composed of sublimed arsenic compounds, is kept as short as possible, whereby, and due to the roasting conditions, any substantial reaction between the roasting material and the corresponding arsenic compounds is avoided. (Machine-translation by Google Translate, not legally binding)
ES0239048A1956-12-111957-12-10A procedure for the testing of arsenical minerals (Machine-translation by Google Translate, not legally binding)
ExpiredES239048A1
(en)
Procedure for the obtaining of dioxidosulphide gases for the staged testing of materials containing tostable sulfur and antimony or antimony and arsenium in reinforced layers (Machine-translation by Google Translate, not legally binding)
Improvements for the desaredination of ashes of calcinated pirites and arsenical west iron minerals (Machine-translation by Google Translate, not legally binding)
Method for the preparation of elemental sulphide, reducing dioxide of sulfide, containing gases, by means of carbon finally divided at elevated temperature. (Machine-translation by Google Translate, not legally binding)
A procedure for the obtaining of di-oxisulphurous gases through staged production of materials containing tostable sulfur and arsenio in repelled layers, obtaining residues of prosthesting exposure from arsenio (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of dioxidosulphide gases through the staged testing of materials containing tostable sulfur and antimony or antimony and arsenium in reinforced layers (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of sulfurous anhydride and gross iron from minerals containing iron sulfide as a main element (Machine-translation by Google Translate, not legally binding)
Procedure for desulfuration of iron minerals to obtain contents in sulfur practically null (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of di-oxisulphurous gases through staged production of materials containing tustable sulfur and arsenium in repelled layers, obtaining residues of tastation practically exempt from arsenio (Machine-translation by Google Translate, not legally binding)