Assay of iron-pyrites for sulphur available for sulphuric acid manufacture
نویسندگان
چکیده
منابع مشابه
Pyrite Roasting, an Alternative to Sulphur Burning
The roasting of sulphide ores and concentrates is often the first step in the production of metals or chemicals. In many processes, the production of sulphuric acid is viewed as a by-product, while in some plants production is an important economic factor. Regardless of the purpose, a pyrite roasting plant consists of mainly three plant sections: roasting, gas cleaning and sulphuric acid. With ...
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The sulphur cycle plays fundamental roles in the chemistry1–3 and climate4,5 of Venus. Thermodynamic equilibrium chemistry at the surface of Venus favours the production of carbonyl sulphide6 and to a lesser extent sulphur dioxide. These gases are transported to the middle atmosphere by the Hadley circulation cell7,8. Above the cloud top, a sulphur oxidation cycle involves conversion of carbony...
متن کاملA statistical proxy for sulphuric acid concentration
Gaseous sulphuric acid is a key precursor for new particle formation in the atmosphere. Previous experimental studies have confirmed a strong correlation between the number concentrations of freshly formed particles and the ambient concentrations of sulphuric acid. This study evaluates a body of experimental gas phase sulphuric acid concentrations, as measured by Chemical Ionization Mass Spectr...
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This study investigated the optimum conditions for the leaching of manganese-rich iron ore for subsequent beneficiation studies in laboratory scale. The experiments were carried out by varying the concentration of H2 SO4 solution and the leaching temperature. The properties of the iron ore was characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM)...
متن کاملMaterial for ‘ Photolysis of sulphuric acid as the source of sulphur oxides in the mesosphere of Venus ’
1 Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125, USA 2 Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan 3 Graduate Institute of Astronomy, National Central University, Zhongli, Taiwan 4 Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan 5 LATMOS, CNRS/INSU/IPSL, Université de Versailles-Sain...
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ژورنال
عنوان ژورنال: The Analyst
سال: 1886
ISSN: 0003-2654,1364-5528
DOI: 10.1039/an8861100209