Results 71 to 80 of about 17,317 (245)
Флотація з носіями як спосіб інтенсифікації збагачення тонкого вугілля [PDF]
, 2013 Наведені і проаналізовані результати апробації флотації тонких класів вугілля із застосуванням носіїв. Показано, що суттєвим позитивним ефектом при вугільній флотації з носіями є збільшення швидкості флотації на 20-25%.
Білецький, В.С. +1 more
core
Past, present and future of local crop evolution
PLANTS, PEOPLE, PLANET, EarlyView.Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales +6 more
wiley +1 more source
steel research international, EarlyView.Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri +3 more
wiley +1 more source
Mineral processing technologies used to obtain valuable components of the solid wastes from coal combustion in power plants [PDF]
Acta Montanistica Slovaca, 2005 This paper presents mineral processing technologies used to achieve components from solid wastes of coal combusted in power plants. By combusting bituminous coal in smelting boilers, mineral novelties are formed which are separable by suitable mineral ...
Martin Sisol +3 more
doaj
steel research international, EarlyView.Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu +3 more
wiley +1 more source
Industrial mineral resources of Zambia [PDF]
, 2000 Zambia has for many years been heavily dependent upon the mining of copper which, combined with cobalt production, represents over 98% of mineral sales and 75% of export earnings (1997 figures).
Mitchell, Clive
core
Statistical Analysis of Consequences Caused by the Collisions of Soaring Drops of Organic Coal-Water Fuel [PDF]
, 2016 The paper examines the processes of collision of the soaring organic coal - water fuel (OCWF) drops in the specialized combustion chamber in case of direct injection of suspension with the subsequent crushing, decay and coagulation.
Jean Claude Legros +2 more
core +2 more sources
steel research international, EarlyView.H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen +5 more
wiley +1 more source
Mechanism of effect of polyacrylamide agent residue on flotation effect of low rank coal
Meitan kexue jishuThe influence mechanism of polyacrylamide (PAM) residue on the flotation of low rank coal during coal slurry water treatment is investigated using low rank coal from the Panji and Pan Yidong Coal Processing Plants in the Huainan Mining Area.
Longxiang BAO +4 more
doaj +1 more source
Coal slime flotation foam image classification method based on semi-supervised clustering
Gong-kuang zidonghua, 2019 In order to solve problems of subjectivity, hysteresis and extensiveness existed in reagent amount addition of coal slime flotation in coal preparation plant depended on manual intervention, a coal slime flotation foam image classification method based ...
CAO Wenyan +4 more
doaj +1 more source