A new process based on a combination of gravity and flotation for the recovery of clean coal from flotation tailings. Issue 4 (16th February 2018)

• Record Type: Journal Article
• Authors: Yang, Zili; Xing, Yaowen; Wang, Dongyue; Yangchao, Xia; Gui, Xiahui
• Is Part Of: Energy sources. Volume 40:Issue 4(2018)
• Page Start: 420
• Page End: 426
• Publication Date: 2018-02-16
• Subjects: Flotation -- flotation tailings -- gravity separation -- grinding liberation; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2017.1405122
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: Beneficiation of clean coal from flotation tailings with a high intergrown ash content is gaining popularity in China. It not only improves the utilization rate of coal resources but also reduces environmental pollution. In this paper, a novel gravity–flotation process is proposed to concentrate low-ash fine coal and includes the disposal of tailings via gravity, grinding liberation, and froth flotation. The experimental results show that the clean coal had an ash content of 12.33% and the yield from the flotation tailings was 32.24% with an ash content of 46.39%, which has economic value in the current market.