Iron Post coal

Iron Post. The Iron Post coal is a high sulfur coal (Table I) from the northeastern Oklahoma shelf, which is associated with pyritic shales. FPD chromatograms of the pyrolysis products of two Iron Post coals of similar rank show that the distributions of organosulfur compounds produced by pyrolysis of these two coals are quite similar (Figure 7). This supports the idea of a relationship between rank and organosulfur compound distribution in the pyrolysates of coals. 

Desmoinesian coal seams in eastern Oklahoma (Figure 2), this study will examine only five different coal seams Hartshorne, Stigler, McAlester, Croweburg and Iron Post. 

The HiSmelt process being developed jointly by CRA of Australia and Midrex Direct Reduction Corp. uses a horizontal vessel, relying on turbulence in the bath to spray particles of slag and iron into the atmosphere above the bath, where heat is transferred from the post-combustion flame to the particles. Here, air is used instead of oxygen, thus removing the requirement of an oxygen plant. This technology emphasizes bottom injection of coal and dust into the iron bath. 

This principal environmental problem posed by coal-cleaning waste is that the pyrite and marcasite in the waste are oxidized to sulfuric acid in the presenee of air, water, Ferrobacillus ferrooxidans, and Thiobacillus ferrooxidans. The sulfuric acid is usually sufficiently concentrated to dissolve numerous metallic constituents and large quantities of iron from the pyrite in the leachate. Any ECT intended to prevent sulfuric acid formation must eliminate either the air, the water, or the oxidizable sulfur compounds in the waste, or inactive Ferrobacillus ferrooxidans and Thiobacillus ferrooxidans by maintaining alkaline conditions. Post-treatment of pile drainage comprises ECTs designed to neutralize the acid in the effluent and remove the metal ions by some sort of precipitation, adsorption, flocculation, or ion-exchange phenomenon. 

Coal tar creosote is widely used for the preservation and water-proofing of wood which is used for utility poles, railroad ties, log homes, fence posts, bams, bridges, piers, and marine pilings. Creosote is also used in roofing and road paving is used and/or produced in coke oven operations, and in the aluminum, iron, and steel industries and is used therapeutically in coal-tar based shampoos, as a treatment for... 

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