Results 51 to 60 of about 180,605 (337)

Investigation of Mineral Admixtures on Mechanical Properties of Alkali-Activated Recycled Concrete Powders Cement

Buildings, 2022
Recycled concrete powders (RCPs) are collected during the treatment of recycled aggregates using devices that suction dust. However, RCPs have not been effectively utilized as mineral admixtures in concrete due to their low activity and high capacity for
Xin Wang, Yurong Yan, Xiaofang Tong, Yongfan Gong   +3 more
doaj   +1 more source

Eco‐Efficient Processing and Refining Routes for Secondary Raw Materials from Silicon Ingot and Wafer Manufacturing

Advanced Energy and Sustainability Research, EarlyView.
The ICARUS project developed pilot‐scale processes to recover and refine secondary raw materials from silicon photovoltaic (PV) ingot and wafer manufacturing waste. Silicon kerf, graphite, and silica residues are purified into high‐value inputs for the PV value chain and beyond.
Martin Bellmann, Berhane Darsene Dimd, Anne‐Karin Søiland, Arne Dahle, C. Landaas, Victorien Iwaszko, Rene Peche, Wolfram Palitzsch, Philippe Lenain, Iratxe de Meatza, Theodora Kyratsi, Liu Huiping, Emanuele Milani, Guy Chichignoud, Stefan Fischer, Almut Schwenke, Eirik Nordboe, Marco Pieterse, Roland Riva   +18 more
wiley   +1 more source

Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags

Kuangchan zonghe liyong
This is an article in the field of metallurgical engineering. In view of the thin slag layer in the desulfurization process of magnesium-based desulfurizers, it is difficult to remove cleanly, resulting in high-concentration desulfurization slag being ...
Wufeng JIANG, Liang TIAN, Suju HAO, He BO, Tengfei MA, Yuzhu ZHANG   +5 more
doaj   +1 more source

INVESTIGATION OF THE ROLE OF LIME UNDER SLAGGING AND INERT-GAS SECONDARY STEEL REFINING

Advanced Engineering Research, 2013
It is shown that the creation of such technologies is caused by the necessity of making standard high-quality steel in composition and temperature. The secondary steel refining provides these conditions and, consequently, the efficient operation of the ...
Denis Anatolyevich Bakhayev, Alexander Ivanovich Kochetov, Alexander Yuryevich Kem, Alexey Alexandrovich Ansimov   +3 more
doaj   +1 more source

Study of the Effect of Fluxing Ability of Flux Ores on Minimizing of Copper Losses with Slags during Copper Concentrate Smelting

Metals, 2022
The article describes the effect of the fluxing ability (FA) of ores used as a flux on slag formation and copper losses. In Kazakhstan, at the Balkhash copper smelting plant (BCSP), currently used fluxes have a very low SiO2 content—about 62%—whereas the
Maral Dyussebekova, Bagdaulet Kenzhaliyev, Sergey Kvyatkovskiy, Sultanbek Kozhakhmetov, Anastasiya Semenova, Bulat Sukurov   +5 more
doaj   +1 more source

Accelerating Surface Composition Characterization of Thin‐Film Materials Libraries Using Multi‐Output Gaussian Process Regression

Advanced Intelligent Discovery, EarlyView.
To integrate surface analysis into materials discovery workflows, Gaussian process regression is used to accurately predict surface compositions from rapidly acquired volume composition data (obtained by energy‐dispersive X‐ray spectroscopy), drastically reducing the number of required surface measurements on thin‐film materials libraries.
Felix Thelen, Florian Lourens, Alfred Ludwig   +2 more
wiley   +1 more source

Review of physical and chemical characteristics and heavy metal migration rules of coal gasification slag

Meitan kexue jishu
The resource utilization of coal gasification slag has become a research focus in the field of coal-based solid waste. The physical and chemical characteristics and the heavy metal migration rules of coal gasification slag are very important for its ...
Changjian LIAO, Jing WANG, Ping JIN, Zhiyu LIU, Wanyi XU, Kun WANG   +5 more
doaj   +1 more source

Steel slag amendment impacts on soil microbial communities and activities of rice (Oryza sativa L.)

Scientific Reports, 2020
With the increase in iron/steel production, the higher volume of by-products (slag) generated necessitates its efficient recycling. Because the Linz-Donawitz (LD) slag is rich in silicon (Si) and other fertilizer components, we aim to evaluate the impact
Suvendu Das, H. Gwon, Muhammad Israr Khan, S. Jeong, P. Kim   +4 more
semanticscholar   +1 more source

Baseline Characteristics of Pristine Agricultural Pods Biochar

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The valorization of agricultural pod wastes into biochar offers a sustainable pathway for waste management and the development of functional carbonaceous materials. This study comparatively evaluates biochars produced from cocoa, flamboyant, and locust bean pods using an autothermal top‐lit updraft gasifier with retort heating, a system ...
Bolaji Ibrahim Busari, Ghadah M. Al‐Senani, Stephen Sunday Emmanuel, Salhah D. Al‐Qahtani, Ebuka Chizitere Emenike, Kingsley O. Iwuozor, Abel U. Egbemhenghe, Rafiu Olasunkanmi Yusuf, Adewale George Adeniyi   +8 more
wiley   +1 more source

Doubting radiocarbon dating from in-slag charcoal

Archeologické Rozhledy, 2018
A Roman-Period bloomery smelting site had been excavated in the Lahn valley at Wetzlar-Dalheim in central Germany during 2006–2012. The production unit consisted of a big rectangular workshop pit with 13 slag pit-furnaces, two waste dumps and a small ...
Guntram Gassmann, Andreas Schäfer
doaj   +1 more source