Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets

Fluorine-bearing iron ore is unique and complex. Serious preheating and roasting problems of fluorine-bearing iron concentrate pellets appear during the industrial production by the grate-kiln process. Besides, specularite has low hydrophilicity, undesirable particle size and shape, dense and smooth...

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Autores principales:	Shuai Wang, Ying Jiang, Yufeng Guo, Feng Chen, Lingzhi Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	pellet fluorine-bearing iron ore specularite compression strength roasting temperature Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/6201d88ad93c43c1b277caa730f51707
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id	oai:doaj.org-article:6201d88ad93c43c1b277caa730f51707
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spelling	oai:doaj.org-article:6201d88ad93c43c1b277caa730f517072021-11-25T17:18:12ZEffects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets10.3390/cryst111113192073-4352https://doaj.org/article/6201d88ad93c43c1b277caa730f517072021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1319https://doaj.org/toc/2073-4352Fluorine-bearing iron ore is unique and complex. Serious preheating and roasting problems of fluorine-bearing iron concentrate pellets appear during the industrial production by the grate-kiln process. Besides, specularite has low hydrophilicity, undesirable particle size and shape, dense and smooth particle surface and poor assimilation performance. Thus, it has not yet been widely applied in production. This study applied the specularite to improve the preheating and roasting characteristics of the fluorine-bearing iron concentrate pellets. The experiment results indicated that the roasting properties of fluorine-bearing iron concentrate pellets were improved and the compression strength of roasted pellets increased with the addition of 10% specularite. The suitable roasting temperature range was expanded to more than 140 °C. Compared to other addition, the total iron of pellets was also increased. In addition, the improvement mechanism of adding specularite on the properties of fluorine-bearing iron concentrate pellets was discussed.Shuai WangYing JiangYufeng GuoFeng ChenLingzhi YangMDPI AGarticlepelletfluorine-bearing iron orespecularitecompression strengthroasting temperatureCrystallographyQD901-999ENCrystals, Vol 11, Iss 1319, p 1319 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pellet fluorine-bearing iron ore specularite compression strength roasting temperature Crystallography QD901-999
spellingShingle	pellet fluorine-bearing iron ore specularite compression strength roasting temperature Crystallography QD901-999 Shuai Wang Ying Jiang Yufeng Guo Feng Chen Lingzhi Yang Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
description	Fluorine-bearing iron ore is unique and complex. Serious preheating and roasting problems of fluorine-bearing iron concentrate pellets appear during the industrial production by the grate-kiln process. Besides, specularite has low hydrophilicity, undesirable particle size and shape, dense and smooth particle surface and poor assimilation performance. Thus, it has not yet been widely applied in production. This study applied the specularite to improve the preheating and roasting characteristics of the fluorine-bearing iron concentrate pellets. The experiment results indicated that the roasting properties of fluorine-bearing iron concentrate pellets were improved and the compression strength of roasted pellets increased with the addition of 10% specularite. The suitable roasting temperature range was expanded to more than 140 °C. Compared to other addition, the total iron of pellets was also increased. In addition, the improvement mechanism of adding specularite on the properties of fluorine-bearing iron concentrate pellets was discussed.
format	article
author	Shuai Wang Ying Jiang Yufeng Guo Feng Chen Lingzhi Yang
author_facet	Shuai Wang Ying Jiang Yufeng Guo Feng Chen Lingzhi Yang
author_sort	Shuai Wang
title	Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
title_short	Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
title_full	Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
title_fullStr	Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
title_full_unstemmed	Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets
title_sort	effects of specularite on the preheating and roasting characteristics of fluorine-bearing iron concentrate pellets
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6201d88ad93c43c1b277caa730f51707
work_keys_str_mv	AT shuaiwang effectsofspeculariteonthepreheatingandroastingcharacteristicsoffluorinebearingironconcentratepellets AT yingjiang effectsofspeculariteonthepreheatingandroastingcharacteristicsoffluorinebearingironconcentratepellets AT yufengguo effectsofspeculariteonthepreheatingandroastingcharacteristicsoffluorinebearingironconcentratepellets AT fengchen effectsofspeculariteonthepreheatingandroastingcharacteristicsoffluorinebearingironconcentratepellets AT lingzhiyang effectsofspeculariteonthepreheatingandroastingcharacteristicsoffluorinebearingironconcentratepellets
_version_	1718412533510963200

Effects of Specularite on the Preheating and Roasting Characteristics of Fluorine-Bearing Iron Concentrate Pellets

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