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Eco Friendly and Cost-Effective Reagent for Coal Flotation

Journal: International Journal of Engineering Research (Vol.2, No. 7)

Publication Date:

Authors : ; ;

Page : 418-423

Keywords : Coal flotation; Diesel; Frother; Single reagent; Biodegradable collector.;

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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 are made to formulate an eco-friendly single reagent to replace diesel-frother system without affecting the flotation performance. Laboratory flotation tests are carried out, on a coking coal sample from eastern India, that analyzes 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 a 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.

Last modified: 2013-11-13 00:04:18