期刊名称：International Journal of Engineering Research
印刷版ISSN：2319-6890
出版年度：2013
卷号：2
期号：7
页码：418-423
出版社：IJER
摘要：Conventionally, diesel in co mbination 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.
关键词：Coal flotation; Diesel; Frother; Single ; reagent; Biodegradable collector.
