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Dewatering Ultrafine Clean Coal in A T. H. Filter Press. DEWATERING ULTRAFINE CLEAN COAL IN A T. H. FILTER PRESS ... South Africa This study demonstrates a low ... [16, 17] in fine coal dewatering via the use of anionic, ...
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dewatering ultrafine coal africa. dewatering ultrafine coal africa. The other is a technology that may be more useful for recovering and dewatering the ultrafine coal from existing impoundments, Details; Calcined kaolin, calcium carbonate, ultrafine, ultrafine .
One is the novel dewatering aids that are currently marketed by Nalco Company. The other is a technology that may be more useful for recovering and dewatering the ultrafine coal from existing impoundments, according to Yoon. Virginia Tech has applied for a patent for this new technology.
Examples of such problem wastes are clay wastes generated during the mining and beneficiation of phosphate ores, the processing of coal to produce a low-ash material, the cleaning of bentonite, beneficiation ol potash, and the recovery of mica from clay-containing ores.
Breed (1992) reported that, approximately 290 million tons of ROM bituminous coal per annum is produced in South Africa. Of this, about 14% is thought to be finer than 500 μm (fine coal) and 2–3% finer than 100 μm (ultrafine coal).
In addition to evaluating the performance of the THFP for dewatering ultrafine clean coal, this study evaluated the potential of dewatering aids, addition of coarse coal as well as certain innovative process modifica-tions, such as hot water treatment, for improving the dewatering per-formance of the THFP and filter presses in general.