Journal ArticleDOI
Resource-recycling and energy-saving innovation for iron removal in hydrometallurgy: Crystal transformation of ferric hydroxide precipitates by hydrothermal treatment.
TLDR
Control of hydrothermal reaction temperature and acidity of the underflow solution can effectively avoid the generation of zinc/nickel/cobalt hydroxides or subsulfates in the hematite precipitates, thereby significantly reducing the loss of those valuable metals.About:
This article is published in Journal of Hazardous Materials.The article was published on 2021-08-15. It has received 15 citations till now. The article focuses on the topics: Hematite & Lepidocrocite.read more
Citations
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Review on biomass metallurgy: Pretreatment technology, metallurgical mechanism and process design
Journal ArticleDOI
Temperature-dependent profiles of dioxin-like toxicants from combustion of brominated flame retardants
TL;DR: In this paper , a chemical kinetic model is presented to account for the "homogenous gas phase" emission of Br-aromatic pollutants from the oxidative thermal decomposition of a monobromobenzene molecule (MBZ).
Journal ArticleDOI
Temperature-dependent profiles of dioxin-like toxicants from combustion of brominated flame retardants.
TL;DR: In this paper, a chemical kinetic model is presented to account for the "homogenous gas phase" emission of Br-aromatic pollutants from the oxidative thermal decomposition of a monobromobenzene molecule (MBZ).
Journal ArticleDOI
Strengthened Oxygen Oxidation of Ferrous Ions by A Homemade Venturi Jet Microbubble Generator towards Iron Removal in Hydrometallurgy
TL;DR: In this paper, a strengthened oxygen oxidation method for Fe2+ using a homemade venturi jet microbubble generator is proposed, which can greatly improve the dissolved oxygen content in the solution and increase the gas-liquid contact area, thereby accelerating the oxygen oxidation rate of Fe2+, to Fe3+ and realizing the rapid iron removal of the leaching solution or suspension.
References
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Journal ArticleDOI
Raman microspectroscopy of some iron oxides and oxyhydroxides
TL;DR: In this paper, the laser power dependence of the spectra of oxides and oxyhydroxides was investigated by using Raman microscopy, and it was shown that increasing laser power causes the characteristic bands of hematite to show up in the spectrum of most of the compounds studied.
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Jarosites and Their Application in Hydrometallurgy
John E. Dutrizac,John L. Jambor +1 more
TL;DR: The alunite supergroup as mentioned in this paper consists of more than 40 minerals with the general formula DG 3(T O4)2(OH,H2O)6, wherein D represents cations with a coordination number greater or equal to 9, and G and T represent sites with octahedral and tetrahedral coordination, respectively.
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Infrared- and Raman-Active Phonons of Magnetite, Maghemite, and Hematite: A Computer Simulation and Spectroscopic Study
Irina Chamritski,Gary R. Burns +1 more
TL;DR: The use of atomistic simulation methods with a transferable Buckingham potential provides new data for the phonon densities of states of magnetite and the two associated phases, hematite and maghemite.
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Heated goethite and natural hematite: Can Raman spectroscopy be used to differentiate them?
TL;DR: In this article, the authors used XRD, TEM and TG as supporting techniques to obtain both ex situ and in situ Raman spectra for disordered hematite.