نتایج جستجو برای: carbothermic reduction

تعداد نتایج: 491806  

Journal: :Steel Research International 2023

Direct reduction of iron ore (DRI) is gaining an increased attention due to the growing need decarbonize industrial processes. The current DRI processes are performed using reformed natural gas, which results in CO 2 emission, although it less than carbothermic blast furnace. Carbon‐free may be realized through utilization green H as a reducing agent, place gas. Herein, effects various gas mixt...

2016
L. G. Ceballos-Mendivil Michael Epstein

Silicon carbide (SiC) has been prepared successfully using concentrated solar energy provided by the IER-UNAM solar furnace. This has led to the development of a low CO2 emissions process for the production of this material via carbothermic reduction of a silica/carbon (SiO2/C) nanocomposite, which has shown a more reactive carbon for formation of composite, being more thermally stable. Silica ...

Journal: :Metallurgical and Materials Transactions B 2001

Journal: :Metals 2021

Red mud is a hazardous waste of the alumina industry that contains high amounts iron, aluminum, titanium and rare-earth elements (REEs). One promising methods for extraction iron from red carbothermic reduction with addition sodium salts. This research focuses on process hydrochloric high-pressure acid leaching using 10 to 20% HCl two samples non-magnetic tailings obtained by 60 min roasting at...

Journal: :Waste Management 2021

• Incineration of spent LIBs promoted carbothermic reduction. The thermal pretreatment helped to improve the leaching efficiency. High efficiencies metals without use reducers. Higher for samples incinerated at lower temperatures. growing demand lithium-ion batteries will result in an increasing flow batteries, which must be recycled prevent environmental and health problems, while helping miti...

2016
Tsung-Yuan Chang Chih-Min Wang Tai-Yuan Lin Hsiu-Mei Lin

The increasing volume and complexity of waste associated with the modern economy poses a serious risk to ecosystems and human health. However, the remanufacturing and recycling of waste into usable products can lead to substantial resource savings. In the present study, clam shell waste was first transformed into pure and well-crystallized single-phase white light-emitting phosphor Ca₉Gd(PO₄)₇:...

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