Results 61 to 70 of about 7,334 (224)

Long-term evolution of highly alkaline steel slag drainage waters [PDF]

, 2015
© 2015, Springer International Publishing Switzerland. The disposal of slag generated by the steel industry can have negative consequences upon the surrounding aquatic environment by the generation of high pH waters, leaching of potentially problematic ...
Mayes, William M., Riley, Alex L.
core   +2 more sources

Combined effect of increasing the post‐reformer temperature and adding red mud as a secondary catalyst in the thermocatalytic reforming of digestate

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This work studies the combined effect of increasing the post‐reformer temperature and introducing red mud as a support catalyst in the thermocatalytic reforming (TCR®) of digestate. The TCR® method, developed by the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT (abbreviated as Fraunhofer UMSICHT), is an extension
Hillary Onyishi, Johannes Neidel, Robert Daschner, Andreas Apfelbacher, Andreas Hornung   +4 more
wiley   +1 more source

Quantificação de macronutrientes no solo e em folhas de cana-de-açúcar em função de doses de resíduo da mineração de bauxita Nutrient diagnosis of sugarcane in function of residue rates of the bauxite mining

Engenharia Agrícola, 2010
O experimento foi realizado em ambiente protegido, com o objetivo de avaliar o efeito do resíduo da mineração de bauxita nos teores de macronutrientes, no solo e em plantas de cana-de-açúcar.
Fabio O. De Nobile, João A. Galbiatti, Reginaldo Muraishi, Adriano G. Ribeiro, Onã da S. Freddi   +4 more
doaj   +1 more source

Extraction of Valuable Elements from Red Mud with a Focus on Using Liquid Media—A Review

Recycling, 2021
Bauxite residue, known as red mud, is a by-product of alumina production using the Bayer process. Currently, its total global storage amounts to over 4.6 billion tons, including about 600 million tons in Russia.
Dmitry Zinoveev, Liliya Pasechnik, Mikhail Fedotov, Valery Dyubanov, Pavel Grudinsky, Andrey Alpatov   +5 more
doaj   +1 more source

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

EcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan, Yu Zhang, Zhazira Supiyeva, Qamar Abbas   +3 more
wiley   +1 more source

Spatial Variations in Methane Content and Their Main Controlling Factors of the Deep‐Buried Coalbed in the Nalinhe–Hengshan Area, Ordos Basin

Energy Science &Engineering, EarlyView.
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe, Wang Kangle, Wang Huaichang, Wang Yufei, Zhang Hui, Cao Jingjing, Yin Liangliang, Hu Xinyou, Liang Chao, Liu Mina   +9 more
wiley   +1 more source

Enhanced Aluminium Extraction from Gibbsitic Bauxite by Electroreduction in the Bayer Process

Metals
The Bayer process is used to extract alumina from bauxite, resulting in the formation of a highly alkaline solid residue known as bauxite residue (BR). However, such residue contains insufficient iron (
Andrei Shoppert, Dmitrii Valeev, Irina Loginova   +2 more
doaj   +1 more source

Preliminary Characterization of Three Metallurgical Bauxite Residue Samples

Materials Proceedings, 2021
Bauxite Metallurgical Residue (BR) is a highly alkaline and very fine-grained by-product of the Bayer process for alumina production. Its huge global annual production has resulted in increasing accumulation of BR, causing deposition problems and serious
Panagiotis Angelopoulos, Maria Georgiou, Paschalis Oustadakis, Maria Taxiarchou, Hakan Karadağ, Yasin Eker, Gheorghe Dobra, Alina Boiangiu, Gökhan Demir, Sedat Arslan, Panagiotis Davris, Efthymios Balomenos   +11 more
doaj   +1 more source

Separation and recovery of materials from scrap printed circuit boards [PDF]

, 2007
Printed circuit boards from waste computers, televisions, and mobile phones were pyrolysed in a fixed bed reactor with the aim of separating and recovering the organic and metallic materials.
Balabanovich, Balabanovich, Balabanovich, Barontini, Barontini, Barontini, Barontini, Bhaskar, Blazso, Blazso, Bradna, Brebu, Chien, Cui, Cunliffe, Fisk, Fukushima, Goosey, Hall, Jawitz, Kaminsky, Lassen, Lee, Lee, Luda, Luda, Marsanich, Murphy, Paul T. Williams, Rajput, Shimasaki, Sivalingam, Vainiotalo, Whelan, William J. Hall, Williams, Williamson   +36 more
core   +1 more source

Natural Resources and Political Patronage in Africa: An Ethnicity Level Analysis

Review of Development Economics, EarlyView.
ABSTRACT We investigate the effect of resource discoveries on ethnicity‐level political patronage in Africa using a large geospatial dataset of 254 ethnic groups in 15 countries over the period 1960–2004. We find that the first (or single first) resource discovery in a virgin ethnic homeland increases the share of cabinet posts of that ethnicity.
Sambit Bhattacharyya, Nemera Mamo
wiley   +1 more source