☆ 4.6 Article

Mechanism of microwave assisted suspension magnetization roasting of oolitic hematite ore

JOURNAL OF CENTRAL SOUTH UNIVERSITY (2022)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Metallurgy & Metallurgical Engineering

Location-dependent effect of nickel on hydrogen dissociation and diffusion on Mg (0001) surface: Insights into hydrogen storage material design

Zongying Han et al.

Summary: This study performed Density Functional Theory (DFT) calculations to investigate the hydrogen dissociation and diffusion on the Mg (0001) surface with Ni incorporation at different locations. The results revealed that the Ni atom prefers to locate inside the Mg matrix rather than on or over the topmost surface. Further calculations showed that the Ni atom located on or over the topmost Mg (0001) surface exhibits an excellent catalytic effect on hydrogen dissociation with a low energy barrier. However, Ni doping inside the Mg bulk not only has little effect on hydrogen dissociation but also hinders hydrogen diffusion. Therefore, stabilizing the Ni atom on the surface or in the topmost layer of the Mg (0001) surface is crucial to maintain its catalytic effect. For all the cases of Ni-incorporated Mg (0001) surfaces, the hydrogen atom prefers to migrate along the surface before penetrating into the bulk. It is expected that the theoretical findings in this study can provide fundamental guidance for the future design of efficient Mg-based hydrogen storage materials.

JOURNAL OF MAGNESIUM AND ALLOYS (2022)

添加到收藏夹

Article Chemistry, Physical

Mulch-assisted ambient-air synthesis of oxygen-rich activated carbon for hydrogen storage: A combined experimental and theoretical case study

Zongying Han et al.

Summary: A method for synthesizing oxygen-rich activated carbon without inert gas has been developed in this study, which involves simple mixing and high temperature treatment under ambient atmosphere. The activated carbon produced through this method exhibits high specific surface area and hydrogen storage density, and is potentially applicable to various precursors, offering a low-cost synthesis pathway for functional carbon materials.

APPLIED SURFACE SCIENCE (2021)

添加到收藏夹

Article Engineering, Chemical

Recycling iron from oolitic hematite via microwave fluidization roasting and magnetic separation

Wentao Zhou et al.

Summary: In this study, a clean and innovative microwave fluidization roasting method was developed to recover iron resources from oolitic hematite. The microwave pretreatment promoted the formation of microcracks at mineral interfaces, accelerating the reaction and phase transformation during magnetization roasting. The iron mineral phase was selectively transformed into strongly magnetic magnetite, and the iron mineral was effectively recycled from the roasted samples through magnetic separation.

MINERALS ENGINEERING (2021)

添加到收藏夹

Article Engineering, Chemical

The application and mechanism of high-efficiency depressant Na2ATP on the selective separation of cassiterite from fluorite by direct flotation

Xun Wang et al.

Summary: In order to achieve efficient flotation separation of cassiterite from fluorite, a eco-friendly depressant, Na(2)ATP, was used to selectively depress fluorite. Micro-flotation experiments showed that Na(2)ATP significantly depressed the flotation of fluorite compared to cassiterite, and the mechanism of selective depression was revealed through surface analyses. Na(2)ATP proved to be a suitable high-efficiency depressant for the separation of cassiterite from fluorite by direct flotation.

MINERALS ENGINEERING (2021)

添加到收藏夹

Article Engineering, Environmental

Pilot-scale extraction of iron from flotation tailings via suspension magnetization roasting in a mixture of CO and H2 followed by magnetic separation

Zhidong Tang et al.

Summary: The study demonstrates that the efficient extraction of iron from flotation tailings through suspension magnetization roasting and magnetic separation is a promising way to reduce emissions and efficiently treat mining tailings.

RESOURCES CONSERVATION AND RECYCLING (2021)

添加到收藏夹

Review Metallurgy & Metallurgical Engineering

Recent Advances in Magnetization Roasting of Refractory Iron Ores: A Technological Review in the Past Decade

Jianwen Yu et al.

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW (2020)

添加到收藏夹

Article Engineering, Chemical

Efficient enrichment of low-grade refractory rhodochrosite by preconcentration-neutral suspension roasting-magnetic separation process

Shuai Yuan et al.

POWDER TECHNOLOGY (2020)

添加到收藏夹

Article Materials Science, Multidisciplinary

Strengthening iron enrichment and dephosphorization of high-phosphorus oolitic hematite using high-temperature pretreatment

Wen-tao Zhou et al.

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS (2020)

添加到收藏夹

Article Engineering, Chemical

Differential collecting performance of a new complex of decyloxy-propyl-amine and α-bromododecanoic acid on flotation of spodumene and feldspar

Ruiqi Xie et al.

MINERALS ENGINEERING (2020)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Application of Wood Char in Processing Oolitic High-phosphorus Hematite for Phosphorus Removal

Hui-qing Tang et al.

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2016)

添加到收藏夹

Article Engineering, Chemical

Thermally assisted liberation of high phosphorus oolitic iron ore: A comparison between microwave and conventional furnaces

Mamdouh Omran et al.

POWDER TECHNOLOGY (2015)

添加到收藏夹

Article Engineering, Chemical

Improvement of phosphorus removal from iron ore using combined microwave pretreatment and ultrasonic treatment

Mamdouh Omran et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2015)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Manganese extraction from high-iron-content manganese oxide ores by selective reduction roasting-acid leaching process using black charcoal as reductant

Zhang Yuan-bo et al.

JOURNAL OF CENTRAL SOUTH UNIVERSITY (2015)

添加到收藏夹

Article Engineering, Chemical

Effect of microwave pre-treatment on the magnetic properties of iron ore and its implications on magnetic separation

Mamdouh Omran et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2014)

添加到收藏夹

Article Engineering, Chemical

Amenability for processing of oolitic iron ore concentrate for phosphorus removal

K. Ionkov et al.

MINERALS ENGINEERING (2013)

添加到收藏夹

Article Metallurgy & Metallurgical Engineering

Characterization and technology of fast reducing roasting for fine iron materials

Luo Li-qun et al.

JOURNAL OF CENTRAL SOUTH UNIVERSITY (2012)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.