Results 91 to 100 of about 9,578 (228)

Battery‐Grade Lithium Materials: Virgin Production and Recycling, a Techno‐Economic Comparison

open access: yesAdvanced Energy Materials, Volume 15, Issue 46, December 9, 2025.
With this study a framework has been created to analyze new innovative lithium compound manufacturing processes for their cost and environmental competitiveness. This analysis includes details on virgin and recycled pathways to produce lithium carbonate or lithium hydroxide monohydrate.
Sabine M. Gallagher   +3 more
wiley   +1 more source

An Image-Based Hierarchical Deep Learning Framework for Coal and Gangue Detection

open access: yesIEEE Access, 2019
The efficient separation of coal and gangue in the mining process is of great significance for improving coal mining efficiency and reducing environmental pollution.
Dongjun Li   +6 more
doaj   +1 more source

Manufacturing and Application of Metalized Ore-Coal Pellets in Synthetic Pig Iron Smelting [PDF]

open access: yes, 2016
The article presents research data on manufacturing and application of metalized ore-coal pellets in synthetic pig iron smelting. A technology of pellets metallization by means of solid-phase reduction of iron from oxides using hematite-magnetite iron ...
Khodosov, I. E.   +2 more
core   +1 more source

Hydrogen Direct Reduction: History and Pathways for Cost Reduction

open access: yescScience, Volume 1, Issue 1, December 2025.
ABSTRACT The steel industry, a critical pillar of global economic development, is highly energy‐intensive, accounting for approximately 7%–9% of global energy‐related CO2 emissions. The transition from traditional carbon‐intensive metallurgy to hydrogen‐based metallurgy represents a pivotal pathway for the green and sustainable development of the steel
Chuanlin Fan   +4 more
wiley   +1 more source

Study on the Parameter Optimization and Strength Mechanism of Coal Gangue Emulsified Asphalt Mixture

open access: yesAdvances in Materials Science and Engineering, 2020
Emulsified asphalt mixture has the characteristics of convenient construction and durable performance, but its poor early strength and demulsification seriously restrict the popularization and application of this material.
ZhanLiang Liu, Chen Zhang, Xin Qu
doaj   +1 more source

Study of reduction behavior of iron ore lumps by coal [PDF]

open access: yes, 2014
Studies on the reduction behavior of hematite iron ore (OMC Ltd.) lumps with coal at different temperatures with varying time were undertaken to understand the effect of time and temperature on degree of reduction.
Kabijeet, K, Kumar, A
core  

Design of separation system of coal and gangue based on X-ray and machine visio

open access: yesGong-kuang zidonghua, 2017
In view of problems of low efficiency, environmental pollution and high cost existed in traditional coal and gangue separation method, a separation system of coal and gangue based on X-ray and machine vision was designed.
YANG Huigang, QIAO Zhimin
doaj   +1 more source

A coal-gangue optimization identification method

open access: yesGong-kuang zidonghua, 2020
Aiming at problem that target detection of coal-gangue image is not accurate due to wear of conveyor belt, which affects identification accuracy of coal-gangue, a coal-gangue optimization identification method is proposed. After pre-processing of collected images such as cutting, denoising and grayscale, the trained cornernet-squeeze deep learning ...
openaire   +1 more source

An LCA study of an electricity coal supply chain [PDF]

open access: yes, 2014
Purpose: The aim of this paper is to provide methods to find the emission source and estimate the amount of waste gas emissions in the electricity coal supply chain, establish the model of the environmental impact (burden) in the electricity coal supply ...
Mu, Dong, Wang, Chao
core  

Dynamic weighing method for coal and gangue in coal-gangue sorting robots

open access: yesGong-kuang zidonghua
Image recognition-based coal-gangue sorting robots have become a research hotspot in the field of coal-gangue separation. To address the issue of low recognition accuracy caused by complex real-world conditions—such as dust adhesion, lighting variation, water stains, and coal slurry coverage—a dynamic weighing method for coal and gangue was proposed ...
CAO Xiangang   +4 more
openaire   +1 more source

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