Aqueous synthesis of finely divided pyrite particles

Dawei Wei; K. Osseo-Asare

doi:10.1016/S0927-7757(95)03502-8

Aqueous synthesis of finely divided pyrite particles

Dawei Wei
, K. Osseo-Asare

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Pyrite (FeS₂) was synthesized by aqueous precipitation from the reaction between FeCl₃ and NaHS at room temperature and atmospheric pressure. The solid product was purified by means of solvent extraction for elemental sulfur removal. The synthetic pyrite particles were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, surface area determination (BET), zeta potential measurements, and chemical analysis. The purified solid analyzed 99.46% FeS₂ with an average particle size of 1.5 μm and a standard deviation of 0.3, a specific surface area of 4.1 m² g^-1, and the isoelectric point (iep) at pH 2.3.

Original language	English (US)
Pages (from-to)	27-36
Number of pages	10
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	121
Issue number	1
DOIs	https://doi.org/10.1016/S0927-7757(95)03502-8
State	Published - Mar 10 1997

All Science Journal Classification (ASJC) codes

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

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10.1016/S0927-7757(95)03502-8

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title = "Aqueous synthesis of finely divided pyrite particles",

abstract = "Pyrite (FeS2) was synthesized by aqueous precipitation from the reaction between FeCl3 and NaHS at room temperature and atmospheric pressure. The solid product was purified by means of solvent extraction for elemental sulfur removal. The synthetic pyrite particles were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, surface area determination (BET), zeta potential measurements, and chemical analysis. The purified solid analyzed 99.46\% FeS2 with an average particle size of 1.5 μm and a standard deviation of 0.3, a specific surface area of 4.1 m2 g-1, and the isoelectric point (iep) at pH 2.3.",

author = "Dawei Wei and K. Osseo-Asare",

note = "Funding Information: Support of this work by the United States Department of Energy under Grant No. DE-FG 22-91 PC 91303 is gratefully acknowledged.",

year = "1997",

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doi = "10.1016/S0927-7757(95)03502-8",

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T1 - Aqueous synthesis of finely divided pyrite particles

AU - Wei, Dawei

AU - Osseo-Asare, K.

N1 - Funding Information: Support of this work by the United States Department of Energy under Grant No. DE-FG 22-91 PC 91303 is gratefully acknowledged.

PY - 1997/3/10

Y1 - 1997/3/10

N2 - Pyrite (FeS2) was synthesized by aqueous precipitation from the reaction between FeCl3 and NaHS at room temperature and atmospheric pressure. The solid product was purified by means of solvent extraction for elemental sulfur removal. The synthetic pyrite particles were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, surface area determination (BET), zeta potential measurements, and chemical analysis. The purified solid analyzed 99.46% FeS2 with an average particle size of 1.5 μm and a standard deviation of 0.3, a specific surface area of 4.1 m2 g-1, and the isoelectric point (iep) at pH 2.3.

AB - Pyrite (FeS2) was synthesized by aqueous precipitation from the reaction between FeCl3 and NaHS at room temperature and atmospheric pressure. The solid product was purified by means of solvent extraction for elemental sulfur removal. The synthetic pyrite particles were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, surface area determination (BET), zeta potential measurements, and chemical analysis. The purified solid analyzed 99.46% FeS2 with an average particle size of 1.5 μm and a standard deviation of 0.3, a specific surface area of 4.1 m2 g-1, and the isoelectric point (iep) at pH 2.3.

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M3 - Article

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JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

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Aqueous synthesis of finely divided pyrite particles

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