Results 21 to 30 of about 196,443 (310)

An effective palynological preparation procedure using hydrogen peroxide [PDF]

open access: yes, 2007
Most pre-Quaternary palynology samples are currently prepared by demineralization of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively).
Kyffin-Hughes, Jane E.   +2 more
core   +2 more sources

Energy Efficiency and Economic Aspects of Mining Wastes Utilization within the Closed Cycle of Underground Gas Generator [PDF]

open access: yes, 2017
Energy efficiency of coal gasification with possible utilization of mining wastes within ecologically closed gas generator cycle has been considered.
CABANA, Edgar Cáceres   +3 more
core   +1 more source

Technical architecture and strategies for intelligent construction of coal preparation plant

open access: yes矿业科学学报
Intelligentization of coal preparation plant is the core technical support for the high-quality development of coal washing. This study targets at the top-level design for the intelligent construction of coal preparation plant.
WANG Meijun   +3 more
doaj   +1 more source

Improvement of Technology and Jar Mills for Preparation of Coal-Water Fuel from Waste Coal

open access: yesГорные науки и технологии, 2020
The process and equipment have been developed for preparation and burning (at small and medium capacity boiler plants) of slurry coal-water fuel, produced from finely dispersed coal preparation waste (filter cakes) from coal preparation plants of ...
V. I. Murko   +4 more
doaj   +1 more source

A comparative study on the mineralogy, chemical speciation, and combustion behavior of toxic elements of coal beneficiation products [PDF]

open access: yes, 2018
The huge demand for high-quality coal in China has resulted in increased generation of preparation plant wastes of various properties. A series of beneficiation products collected from a preparation plant were characterized to understand their ...
Fu, B(Fu, Biao)   +6 more
core  

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Некоторые факторы эффективной работы углеобогатительных фабрик [PDF]

open access: yes, 2015
Наведено фактори, що впливають на якість товарної продукції і роботу вуглезбагачу-вальних фабрик.Приведены факторы, влияющие на качество товарной продукции и работу углеобога-тительных фабрик.Presents the factors affecting the quality of commercial ...
Кривощеков, В.И.   +1 more
core  

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Collector Optimization for Lyulin Plant's Coal Flotation

open access: yesKuangchan zonghe liyong
This is an article in the field of mineral processing engineering. Three samples of 5#, 9# and Mugua coal from Coal Preparation Plant of Lyulin Energy & Chemical Co., Ltd. were collected as the research objects. Screening, proximate analysis and ultimate
Chongyi YANG   +5 more
doaj   +1 more source

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