Results 71 to 80 of about 609 (196)

Toward Decarbonization of the Titanium Industry via Hydrogen Plasma Smelting Reduction

Advanced Science, Volume 13, Issue 1, 5 January 2026.
Hydrogen plasma smelting reduction enables direct, zero‐carbon conversion of low‐grade ilmenite into steel‐grade iron and a titania‐rich precursor for pigment production. The single‐step process merges smelting and refining, sharply lowers silica content, and offers a breakthrough path for sustainable, high‐value extraction from abundant mineral sands.
Laura Gabriela Torres‐Mejia, Ubaid Manzoor, Guangyi Guo, Chris W. Bumby, Dierk Raabe, Isnaldi R. Souza Filho   +5 more
wiley   +1 more source

Research Status and Development Trend of Macromolecular Structure and Model Construction of Different Coals

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 1, January/February 2026.
ABSTRACT Coal is a natural macromolecular substance composed of complex organic molecules and a small amount of minerals. Its chemical composition and microstructure are highly complex and variable, and no unified definition exists. This inherent structural complexity underscores the theoretical significance of constructing accurate macromolecular ...
Chao Zhou, Jun Chen, Yali Cheng, Huanhuan Shang, Longxiang Bao, Chenliang Peng   +5 more
wiley   +1 more source

Recycling of Spent Cathode Carbon from Aluminum Electrolysis: Detoxification Approaches, Resource Utilization, and Environmental Perspectives

ChemElectroChem, Volume 13, Issue 1, January 2026.
This review outlines the recycling of spent cathode carbon from aluminum electrolysis. Detoxification strategies, including molten salt roasting and ultrasonic‐assisted leaching, are depicted as effective approaches for removing hazardous components. The recovered carbon is further directed toward resource utilization, such as in lithium‐ and carbon ...
Narasimharao Kitchamsetti, Ana L. F. de Barros, HyukSu Han, Sungwook Mhin   +3 more
wiley   +1 more source

Distributed Fiber Optic‐Based Monitoring and Analysis of Flexible Molded Concrete Piers for Coal Pillar Free Mining

Energy Science &Engineering, Volume 14, Issue 1, Page 412-427, January 2026.
Using the pillarless mining face at Zhaozhuang Coal Mine as a case study, the research objective is to accurately and comprehensively understand the stress distribution and its evolution characteristics in flexible concrete pillars along the hollow support pillars under the influence of secondary mining movements during pillarless coal mining ...
Yanhui Zhu, Ye Tian, Peilin Gong, Kang Yi, Tong Zhao   +4 more
wiley   +1 more source

Study on the prediction of gangue content rate in fully mechanized caving face based on DeepLab v3+

Gong-kuang zidonghua
To tackle the challenge of accurately determining the volumetric gangue content rate under actual stacking conditions of coal-gangue in fully mechanized caving faces, a prediction method based on the DeepLab v3+ model was proposed.
WANG Zhifeng, WANG Jiachen, LI Lianghui, AN Bochao   +3 more
doaj   +1 more source

Mullite production by valorization of a hydrodesulphurization catalyst waste

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Due to its high alumina and silica content, Ni–Mo catalyst waste is a suitable, amorphous raw material for producing aluminosilicate phases. Thermal treatment of the waste at 1200°C for 30 min yields a material containing 50 wt.% mullite and exhibiting 96% overall crystallinity. The addition of amorphous silica significantly enhances mullite formation:
Rafael Carrizosa, Agenor De Noni Jr., Aurora López‐Delgado, Isabel Padilla, Maximina Romero   +4 more
wiley   +1 more source

DE-XRT coal preparation image overlapping and adhesion particle segmentation method

, 2022
Accurate segmentation of dual-energy X-ray transmission (DE-XRT) coal and gangue image regions are a prerequisite for feature extraction, identification, localization, and separation. A watershed algorithm based on multi-grayscale threshold segmentation (
Guo, Yongcun, He, Lei, Wang, Shuang
core   +1 more source

Recognition method of transient falling images of coal and gangue separation in underground solid backfill mining with multimodal large language models

Meitan kexue jishu
Solid backfill coal mining, as a green mining method that balances resource recovery and ecological protection, relies on coal and gangue separation as a core process for the efficient operation of integrated underground mining, selection, and backfill ...
Yun ZHANG, Yixuan YANG, Xingping LAI, Liang TONG, Shenggen CAO, Yongzi LIU, Long ZHANG, Licheng BAI, Hao YE   +8 more
doaj   +1 more source

Distribution Characteristics of Stress Sources and Surrounding Rock Structure Control Techniques of Gob‐Side Entry Driving in Extra‐Thick Coal Seam

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the challenges of surrounding rock control caused by complex stress sources and intense ground pressure in gob‐side entry driving (GED) with narrow coal pillars under extra‐thick coal seams, this study takes the 10 m‐thick coal seam 8204 panel of Tashan Coal Mine as the engineering background.
Dongjie Jiang, Guangzhong Sun, Junjie Guo, Junwen Li, Xing Xu, Qi Ma, Arnab Biswas   +6 more
wiley   +1 more source

Research on separation mechanism of coal gangue photoelectric sorting recognition

Efficiently realizing the separation of coal gangue is a hot issue in coal preparation. To solve this problem, this paper proposes research on the identification and separation of minerals in coal gangue based on dual-energy X-rays, and conducts ...
Wang, Haoyu, Wang, Lingling, Zhu, Jinbo, Feng, Anan, Zhou, Wei, Li, Liansheng   +5 more
core   +1 more source