Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene

Conventional hydrocarbon oil cannot adhere effectively to oxidized coal, resulting in a low yield of clean coal. In this study, a high-speed homogenizer was used to emulsify LDD (laurylamine dipropylene diamine) and kerosene, which enhanced the flotation efficiency of oxidized coal. The flotation re...

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Autores principales:	Qingshan Zhang, Chenkai Niu, Xiangning Bu, Muhammad Bilal, Chao Ni, Yaoli Peng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	flotation of oxidized coal laurylamine dipropylene diamine emulsified kerosene froth stability coal hydrophobicity Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/913f37a64aa440d08f157e6bf3f4b454
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id	oai:doaj.org-article:913f37a64aa440d08f157e6bf3f4b454
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spelling	oai:doaj.org-article:913f37a64aa440d08f157e6bf3f4b4542021-11-25T18:26:45ZEnhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene10.3390/min111112712075-163Xhttps://doaj.org/article/913f37a64aa440d08f157e6bf3f4b4542021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1271https://doaj.org/toc/2075-163XConventional hydrocarbon oil cannot adhere effectively to oxidized coal, resulting in a low yield of clean coal. In this study, a high-speed homogenizer was used to emulsify LDD (laurylamine dipropylene diamine) and kerosene, which enhanced the flotation efficiency of oxidized coal. The flotation results showed an increase from 4.12% (only kerosene) to 23.33% (emulsified oil). An increase in contact angle indicated that the mixture reagent can increase the hydrophobicity of coal particles, which is attributed to the adsorption of LDD onto the coal particle surface and the decrease of the oil droplet A lower surface tension of LDD allows it to produce a stable layer of froth than the layer generated by kerosene alone.Qingshan ZhangChenkai NiuXiangning BuMuhammad BilalChao NiYaoli PengMDPI AGarticleflotation of oxidized coallaurylamine dipropylene diamineemulsified kerosenefroth stabilitycoal hydrophobicityMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1271, p 1271 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	flotation of oxidized coal laurylamine dipropylene diamine emulsified kerosene froth stability coal hydrophobicity Mineralogy QE351-399.2
spellingShingle	flotation of oxidized coal laurylamine dipropylene diamine emulsified kerosene froth stability coal hydrophobicity Mineralogy QE351-399.2 Qingshan Zhang Chenkai Niu Xiangning Bu Muhammad Bilal Chao Ni Yaoli Peng Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
description	Conventional hydrocarbon oil cannot adhere effectively to oxidized coal, resulting in a low yield of clean coal. In this study, a high-speed homogenizer was used to emulsify LDD (laurylamine dipropylene diamine) and kerosene, which enhanced the flotation efficiency of oxidized coal. The flotation results showed an increase from 4.12% (only kerosene) to 23.33% (emulsified oil). An increase in contact angle indicated that the mixture reagent can increase the hydrophobicity of coal particles, which is attributed to the adsorption of LDD onto the coal particle surface and the decrease of the oil droplet A lower surface tension of LDD allows it to produce a stable layer of froth than the layer generated by kerosene alone.
format	article
author	Qingshan Zhang Chenkai Niu Xiangning Bu Muhammad Bilal Chao Ni Yaoli Peng
author_facet	Qingshan Zhang Chenkai Niu Xiangning Bu Muhammad Bilal Chao Ni Yaoli Peng
author_sort	Qingshan Zhang
title	Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
title_short	Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
title_full	Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
title_fullStr	Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
title_full_unstemmed	Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
title_sort	enhancement of flotation performance of oxidized coal by the mixture of laurylamine dipropylene diamine and kerosene
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/913f37a64aa440d08f157e6bf3f4b454
work_keys_str_mv	AT qingshanzhang enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene AT chenkainiu enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene AT xiangningbu enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene AT muhammadbilal enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene AT chaoni enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene AT yaolipeng enhancementofflotationperformanceofoxidizedcoalbythemixtureoflaurylaminedipropylenediamineandkerosene
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Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene

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