Eco Friendly and Cost-Effective Reagent for Coal Flotation

Vasumathi, N and Vijaya Kumar, T V and Subba Rao, S and Prabhakar, S and Bhaskar Raju, G and Shivakumar, S and Uma, Raman (2013) Eco Friendly and Cost-Effective Reagent for Coal Flotation. International Journal of Engineering Research, 2(7) (IF-0.421). pp. 418-423.



Conventionally, diesel in combination with a frother is used widely in flotation of coal fines. With the continuous price escalation of petroleum products and their negative impact on environment, attempts were made to formulate an eco-friendly single reagent to replace diesel-frother system without affecting the flotation performance. Laboratory flotation tests were carried out, on a coking coal sample from eastern India, that analyzed 25.67% ash and 53.97% fixed carbon using a series of reagents developed. Among them, the performance of Sokem 590C derived from a vegetable oil was found to be encouraging. Concentrate assaying 11.77% ash and 66.40% fixed carbon was obtained with yield of 56.57%. Moreover, the reagent is biodegradable and eco friendly. Based on favorable kinetics and encouraging test results, plant trials were conducted at a coal preparation plant and the superiority of this reagent was demonstrated.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Coal flotation; Diesel; Frother; Single reagent, Biodegradable collector
Divisions:NML Chennai > Mineral Processing
ID Code:6745
Deposited By:Ms. N Vasumathi
Deposited On:05 Nov 2013 17:35
Last Modified:05 Nov 2013 17:35
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