Study on regulators of purifying magnesite ore by cationic reverse flotation

Abstract The floatability of magnesite, dolomite and quartz is a major factor affecting the removal of silicon and calcium from magnesite ore. The effect of the regulators sodium hexametaphosphate (SH), sodium silicate (SS), trisodium phosphate (TP), tannic acid (TN) and monoammonium oxalate (OA) on...

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Autores principales:	Pengcheng Li, Shujuan Dai, Wenhan Sun, Mingyang Fan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b02eb95f27ff498d8513bbc53d3152ff
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spelling	oai:doaj.org-article:b02eb95f27ff498d8513bbc53d3152ff2021-12-02T18:51:52ZStudy on regulators of purifying magnesite ore by cationic reverse flotation10.1038/s41598-021-96549-42045-2322https://doaj.org/article/b02eb95f27ff498d8513bbc53d3152ff2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96549-4https://doaj.org/toc/2045-2322Abstract The floatability of magnesite, dolomite and quartz is a major factor affecting the removal of silicon and calcium from magnesite ore. The effect of the regulators sodium hexametaphosphate (SH), sodium silicate (SS), trisodium phosphate (TP), tannic acid (TN) and monoammonium oxalate (OA) on the floatability of magnesite, dolomite, and quartz under the ether amine (EAH) system was studied. The results show that the five regulators have relatively little influence on the floatability of quartz and magnesite. Dolomite can be activated when the dosage of SH is less than 40 mg/L; however, dolomite can be inhibited when the SH dosage is greater than 40 mg/L. The other four regulators have inhibitory effects on dolomite, and TN and TP have strong inhibitory effects on dolomite. Under the conditions of optimum grinding fineness, pH and collector dosage, a recovery of approximately 70% and a concentrate with a grade of over 47% were obtained by three stages of reverse flotation using sodium hexametaphosphate and water glass as regulators and Haicheng magnesite ore with an SiO2 content of 2.38% and a CaO content of 0.75%. Potentiometric measurements and infrared spectroscopy analysis show that physical adsorption occurs between the three minerals and collectors, while the interaction of magnesite and dolomite with SH and SS involves both physical adsorption and chemical adsorption.Pengcheng LiShujuan DaiWenhan SunMingyang FanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pengcheng Li Shujuan Dai Wenhan Sun Mingyang Fan Study on regulators of purifying magnesite ore by cationic reverse flotation
description	Abstract The floatability of magnesite, dolomite and quartz is a major factor affecting the removal of silicon and calcium from magnesite ore. The effect of the regulators sodium hexametaphosphate (SH), sodium silicate (SS), trisodium phosphate (TP), tannic acid (TN) and monoammonium oxalate (OA) on the floatability of magnesite, dolomite, and quartz under the ether amine (EAH) system was studied. The results show that the five regulators have relatively little influence on the floatability of quartz and magnesite. Dolomite can be activated when the dosage of SH is less than 40 mg/L; however, dolomite can be inhibited when the SH dosage is greater than 40 mg/L. The other four regulators have inhibitory effects on dolomite, and TN and TP have strong inhibitory effects on dolomite. Under the conditions of optimum grinding fineness, pH and collector dosage, a recovery of approximately 70% and a concentrate with a grade of over 47% were obtained by three stages of reverse flotation using sodium hexametaphosphate and water glass as regulators and Haicheng magnesite ore with an SiO2 content of 2.38% and a CaO content of 0.75%. Potentiometric measurements and infrared spectroscopy analysis show that physical adsorption occurs between the three minerals and collectors, while the interaction of magnesite and dolomite with SH and SS involves both physical adsorption and chemical adsorption.
format	article
author	Pengcheng Li Shujuan Dai Wenhan Sun Mingyang Fan
author_facet	Pengcheng Li Shujuan Dai Wenhan Sun Mingyang Fan
author_sort	Pengcheng Li
title	Study on regulators of purifying magnesite ore by cationic reverse flotation
title_short	Study on regulators of purifying magnesite ore by cationic reverse flotation
title_full	Study on regulators of purifying magnesite ore by cationic reverse flotation
title_fullStr	Study on regulators of purifying magnesite ore by cationic reverse flotation
title_full_unstemmed	Study on regulators of purifying magnesite ore by cationic reverse flotation
title_sort	study on regulators of purifying magnesite ore by cationic reverse flotation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b02eb95f27ff498d8513bbc53d3152ff
work_keys_str_mv	AT pengchengli studyonregulatorsofpurifyingmagnesiteorebycationicreverseflotation AT shujuandai studyonregulatorsofpurifyingmagnesiteorebycationicreverseflotation AT wenhansun studyonregulatorsofpurifyingmagnesiteorebycationicreverseflotation AT mingyangfan studyonregulatorsofpurifyingmagnesiteorebycationicreverseflotation
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Study on regulators of purifying magnesite ore by cationic reverse flotation

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