Results 51 to 60 of about 3,122 (246)
Difficult-to-float lignite reverse flotation based on forced pre-mudding
矿业科学学报Lignite is prone to mudding and poor separation effect in direct flotation. This study puts forward a lignite flotation method of forced mudding combined with reverse flotation for efficient ash reduction and quality improvement of difficult-to-float ...
LI Yunchang +6 more
doaj +1 more source
Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices
Advanced Science, EarlyView.Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen +9 more
wiley +1 more source
Study on Flotation Test of Gansu Fatty Coal Enhanced by 2-Octanol Emulsion
Taiyuan Ligong Daxue xuebao[Purposes] In order to recover fine coal more efficiently and explore the flotation characteristics of 2-octanol emulsion, Gansu fatty coal is taken as a research object, a size-classifying flotation experiment is designed.
TIAN Buling +3 more
doaj +1 more source
Experimental study on biodiesel collector enhanced coal fly ash flotation decarbonization
Meitan kexue jishu, 2023 The high degree of oxidation and poor hydrophobicity of fly ash particles result in the formation of stable hydration films that impede the effective adsorption of conventional hydrocarbon-based collectors onto the particle surfaces.
Shiqi DAI +6 more
doaj +1 more source
Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu +5 more
wiley +1 more source
Experiment study on fine coal slime flotation with simultaneous ultrasonic treatment
矿业科学学报, 2019 In order to investigate the effect of ultrasonic simultaneous treatment on flotation of fine coal slimes,a new ultrasonic flotation device was made to conduct floatation experiment.The particle size distribution of clean coal was measured by Laser ...
Wang Weidong, Zhang Nan, Jin Lizhang
doaj +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang +2 more
wiley +1 more source
Coal desulfurization by bacterial treatment and column flotation. Final report
, 1994 A review of the literature showed that bacterial leaching, using the microorganism Thiobacillus ferrooxidans, was a very effective technique for removing pyrite from coal, as it could dissolve even the finest pyrite particles without the need for ...
Kawatra, S. K.
core +1 more source
Microbubble flotation of fine coal. Final report [PDF]
, 1984 Fine coal flotation has been a longstanding problem in industry. Coal particles below approximately 38 microns in diameter are difficult to float, and the process consumes large amounts of reagents. Hydrodynamic analyses have shown, however, that the use
Yoon, R. H.
core +1 more source
Physical and Chemical Interactions in Coal Flotation [PDF]
, 2003 Coal flotation is a complex process involving several phases (particles, oil droplets and air bubbles). These phases simultaneously interact with each other and with other species such as the molecules of a promoting reagent and dissolved ions in water ...
Polat, Hürriyet +2 more
core +2 more sources