98/00088 Upgrading of brown coal by slurry-dewatering

• Publisher: Elsevier Science
• Year: 1998
• Weight: 203 KB
• Volume: 39
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(97)85356-8

✦ 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.