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98/00082 Structural changes in deashed coals induced by heat treatment

Publisher
Elsevier Science
Year
1998
Weight
203 KB
Volume
39
Category
Article
ISSN
0140-6701

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✦ Synopsis

A combined demineralization-agglomeration two-stage process for salty coal is introduced for increasing quality and yield of coal concentrates.

The salt was dissoluted and removed by coal treatment with 0.1-0.3 mass% oil. After demineralization 3-20 mass% of oil was added to the coal hydromixture The resulting coal concentrate has ash content of 6-lo%, moisture content of lo-12%, and salt content ~0.4% per dry mass.

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