Fabrication of a Nanosize Hematite Pigment via Waste Ferrous Sulfate Recycling Using Sulfur Reduction

Fabrication of a Nanosize Hematite Pigment via Waste Ferrous Sulfate Recycling Using Sulfur Reduction

Wang, Ye (Sichuan University)
Ren, Genkuan (Yibin University)
Jiang, Bing (Sichuan University)
Yang, Lin (Sichuan University)
Zhang, Zhiye (Sichuan University)
Wang, Xinlong (Sichuan University)
Zhong, Yanjun (Sichuan University)
Chen, Z. (TU Delft (OLD) MSE-3)
Yang, Xiushan (Sichuan University)
Morita, Kazuki (University of Tokyo)
Ma, Wenhui (Kunming University of Science and Technology)

2022

Nanometer-sized hematite was prepared via a two-step process. In the first step, FeSO₄·7H₂O was oxidized to Fe₂(SO₄)₃ by oxygen in an acidic solution. In the second step, the Fe₂(SO₄)₃ was reduced to nanosize hematite with sulfur vapor at 550 °C. The hematite has good thermal stability up to 500 °C and good colloid stability in water-based paint. Its properties satisfy the requirements of the international standard ISO 1248-A-I-1-a for an iron oxide red pigment. Graphical abstract: [Figure not available: see fulltext.]

http://resolver.tudelft.nl/uuid:7ce486f0-1c37-4fea-830e-72287af21b6e

https://doi.org/10.1007/s11663-022-02584-5

2023-07-01

1073-5615

Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science, 54 (1), 22-28

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2022 Ye Wang, Genkuan Ren, Bing Jiang, Lin Yang, Zhiye Zhang, Xinlong Wang, Yanjun Zhong, Z. Chen, Xiushan Yang, Kazuki Morita, Wenhui Ma