Flotation and sulphur selectivity of a bituminous coal with different degrees of oxidation
✍ Scribed by J.Mario Díaz; J.Félix Hernanz
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 414 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
✦ Synopsis
Table 6 Effect of pressure (IO 350 kPa1 and temperature (96'C) on the FSI of coals
FSI of coals inhibitor Coal A Coal B Original coal KzCr04 (50 ppm) Lime (pH 12) NaOH (0.004 M) Na-&Os 10.1 Mi NaHC03 (0.1 MI NazSi03 (0.1 MI K2cro4 (50 ppm)a NaOH (0.004 MI a 5.0
📜 SIMILAR VOLUMES
A procedure was developed for the direct determination ofeach of the sulphur forms in coai by using various strengths of perchloric acid as the selective oxidizing agent. Sulphate, sulphide, pyritic and organic sulphur were each determined sequentially on a single sample of coal. The oxidizing abili
The biological molecule responsible for the suppression of pyritic sulfur i n fine coal simulated froth flotation treated with bacteria was identified. Protein was found to be the most effective agent in pyrite suppression of the three cell components (protein, lipid, and carbohydrate) assayed. Coal
Two bituminous coals, a high volatile Eastern Canadian and a medium volatile Western Canadian, were used to investigate the effect of oxidation on yieldsand chemical composition of gases, liquids and chars produced during coal pyrolysis. Pyrolysis experiments were performed at 500°C using the Fische
It is shown that the oxidation of an Asturian bituminous coal by air, at 150" and 27O"C, has a considerable influence on the microporous structure of the carbon obtained by subsequent carbonization and steam activation to 50% burn-off. The direct activation of the coal leads to an open micropore sy