Results 21 to 30 of about 299,164 (314)

A Product Diffusion Model for the Extraction of Cerium and Yttrium from Magnetic Coal Fly Ash Using Citric Acid Solution

open access: yesInternational Journal of Technology, 2022
The recovery of rare earth elements from coal-related materials, primarily fly ash, has become an emerging topic for the past few years. The availability of fly ash as solid waste from coal combustion and its low radionuclide concentrations benefit ...
Pramesti Prihutami   +3 more
doaj   +1 more source

The local mineral potential from East Lampung - Indonesia: the use of basalt rock as a stone meal for cassava plant

open access: yesJournal of Degraded and Mining Lands Management, 2019
Indonesia has an abundant amount of basalt rocks resources, including in East Lampung Regency of Lampung Province. This basalt has not been used optimally and only be used as a foundation. The use of basalt as soil fertilizer also known as the stone meal.
Yusup Hendronursito   +6 more
doaj   +1 more source

Flotation performance analysis on coal washery rejects

open access: yesEnergy Geoscience, 2021
The coal washery rejects cause major environmental problems in various parts of the globe. Nearly 1 Mt of coal rejects discarded as waste, is accumulated per annum in India, during washing or cleaning of raw coal.
P.S. Kumar   +3 more
doaj   +1 more source

An increase in the Copper Recovery of the Sarcheshmeh Copper Complex through Reagent Modifications [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
In the flotation of sulfide minerals, particularly in the separation between pyrite and chalcopyrite, adjustment of the pH and reagents dosages is very important.  Process auditing at the Sarcheshmeh copper complex showed that the pH in the rougher cells
Ehsan Salajegheh   +2 more
doaj   +1 more source

Characterization of Nitrogen Release in Modified Controlled-Release-Fertilizer using Rice Husk Biochar

open access: yesInternational Journal of Technology, 2020
Rice husk biochar was added to modify ureic fertilizer in order to control nitrogen release in two methods: (1) mixed-granule and (2) as a coating. The mixed-granule fertilizer was made of varied compositions of rice husk biochar, ureic fertilizer ...
Himawan Tri Bayu Murti Petrus   +5 more
doaj   +1 more source

Sequestering atmospheric CO2 inorganically:a solution for Malaysia's CO2 emission [PDF]

open access: yes, 2018
Malaysia is anticipating an increase of 68.86% in CO2 emission in 2020, compared with the 2000 baseline, reaching 285.73 million tonnes. A major contributor to Malaysia's CO2 emissions is coal-fired electricity power plants, responsible for 43.4% of the ...
Aziz, Maniruzzaman A.   +5 more
core   +1 more source

Cultivating Innovative Talents of Mineral Processing Engineering Based on the Advantage of National Key Discipline [PDF]

open access: yes2011 ASEE Annual Conference & Exposition Proceedings, 2020
Cultivating Innovative Talents of Mineral Processing Engineering Based on the Advantage of National Key Discipline Youjun Tao*, Guangyuan Xie, Yali Kuang School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, Jiangsu 221116ABSTRCT: The importance of innovative personnel training for mineral processingengineering
Yue-Min Zhao, Yue-min Zhao
openaire   +2 more sources

Improving rock classification in terms of explosivity [PDF]

open access: yes, 2019
Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A   +5 more
core   +1 more source

Estimation of the wear rate associated with ball mill of Mahd Ad Dahab Gold Mine, Saudi Arabia (KSA) [PDF]

open access: yes, 2018
Purpose. This study aims to estimate the wear of the middle chrome grinding balls in both dry and wet grinding media. The selected ball mill for this study is located at Mahd Ad Dahab Gold Mine, Saudi Arabia. Methods.
Abdelhaffez, G
core   +1 more source

Structural evolution of coal sludge filter cake and optimization mechanism of combined chemicals in the process of filtration pressing

open access: yesMeitan xuebao
The structure of coal sludge filter cake has an important influence on the dewatering effect. In this study, the characteristics of the filter cake structure and its evolution law in the process of filter press dewatering were investigated by using the ...
Xiaomin MA   +4 more
doaj   +1 more source

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