scholarly journals Understanding the collection behavior of gangue minerals in fine flake graphite flotation

2021 ◽  
Author(s):  
Wenlu Xu ◽  
Kangkang Sun ◽  
Yangshuai Qiu ◽  
Lingyan Zhang ◽  
Luo Yang ◽  
...  
Keyword(s):  
Flake Graphite

Retracted Article: Enhanced adsorption of ionizable aromatic compounds on humic acid-coated carbonaceous adsorbents

RSC Advances ◽  
2012 ◽  
Vol 2 (27) ◽  
pp. 10359-10364 ◽  
Author(s):  
Yubing Sun ◽  
Changlun Chen ◽  
Dadong Shao ◽  
Jiaxing Li ◽  
Xiaoli Tan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Activated Carbon ◽  
Humic Acid ◽  
Aromatic Compounds ◽  
Flake Graphite ◽  
Graphene Oxide Nanosheets ◽  
Multiwalled Carbon ◽  
Retracted Article ◽  
Enhanced Adsorption

Adsorption of ionizable aromatic compounds (IACs) such as 1-naphthylamine and 1-naphthol on Humic acid (HA)-coated graphene oxide nanosheets (GONs), multiwalled carbon nanotubes (MWCNTs), activated carbon (AC), and flake graphite (FG) were investigated by the batch techniques.

Influence of the natural flake graphite particle size on the textural characteristic of exfoliated graphite used for heavy oil sorption

Carbon ◽  
2006 ◽  
Vol 44 (12) ◽  
pp. 2590-2592 ◽  
Author(s):  
F. Vieira ◽  
I. Cisneros ◽  
N.G. Rosa ◽  
G.M. Trindade ◽  
N.D.S. Mohallem
Keyword(s):  
Particle Size ◽  
Heavy Oil ◽  
Graphite Particle ◽  
Exfoliated Graphite ◽  
Flake Graphite ◽  
Textural Characteristic ◽  
Oil Sorption

Research on Purification Technology of Ultra-Large Flake Graphite Based on Alkali-Acid Method

2021 ◽  
Vol 1036 ◽  
pp. 104-113
Author(s):  
Hong Fei Guo ◽  
Bao Chao ◽  
Zeng Qi Zhao ◽  
Ding Nan
Keyword(s):  
Carbon Content ◽  
High Purity ◽  
Raw Materials ◽  
Acid Leaching ◽  
Flake Graphite ◽  
Fixed Carbon ◽  
Fusion Temperature ◽  
Acid Method ◽  
Fixed Carbon Content ◽  
Flake Structure

Graphite is a strategically scarce resource, and the preparation of high-purity graphite is the prerequisite and basis for the application of graphite. In order to determine the optimal purification technology parameters of an ultra-large flake graphite mine pneumatic separation ore with a fixed carbon content of 77.69%, a particle size of mainly 10 to 40 mesh, and main impurities of calcium carbonate, iron oxide and silica , two additional experiments of acid method and alkali method were added on the basis of alkali-acid method, to investigate the purification effect of different technological processes and acid leaching times on graphite raw materials, as well as to analyze the retention extent of different methods and alkali fusion temperature on graphite ultra-large flake structure. The results show that all three methods can increase the fixed carbon content of graphite to above 99%. However, compared with the acid method and the alkali method, the alkali-acid method can obtain high-purity graphite while also better protecting the graphite's ultra-large flake structure. The optimal fusion temperature is 400 °C, the optimal acid leaching time is 30% sulfuric acid thrice and 5% hydrofluoric acid once. After purification, the fixed carbon content of the product exceeds 99.97%.

ON THE INFLUENCE OF THE SIZE OF FLAKE GRAPHITE INCLUSIONS AND ITS VOLUME CONTENT ON THE ACOUSTIC PARAMETERS OF CAST IRON AND THE CHARACTERISTICS OF ULTRASONIC LONGITUDINAL WAVE SIGNALS

2021 ◽  
pp. 4-15
Author(s):  
V. N. Danilov ◽  
L. V. Voronkova
Keyword(s):  
Computer Simulation ◽  
Cast Iron ◽  
Longitudinal Wave ◽  
Attenuation Coefficient ◽  
Volume Content ◽  
Phased Array ◽  
Flake Graphite ◽  
Layered Model ◽  
Linear Probe ◽  
Graphite Inclusions

Algorithms have been presented for calculating the velocity (in the approximation of a fine-layered model) and the attenuation coefficient of a longitudinal ultrasonic wave in cast iron, depending on the average size of graphite elements and its volume content, the calculation results for which are qualitatively confirmed experimentally. The calculation was performed using a fine-layered model of the structure, the graphite inclusions were described in the form of plane-parallel layers placed in an isotropic elastic medium (metal base). Computer simulation of acoustic paths for a mediumcast iron with flake graphite for standard direct converters is carried out in order to study the influence of such a medium on the characteristics of transmitted and received signals during ultrasonic testing. In the course of the research, a previously developed model was used to calculate the attenuation coefficient of longitudinal waves in cast iron with flake graphite due to their Rayleigh and phase scattering on graphite inclusions. Computer simulation of the acoustic characteristics of the signals of a direct linear probe with a phased array in cast iron with flake graphite was carried out, during which the shape of the acoustic pulses of the longitudinal wave was calculated, depending on the distance traveled by the wave and the value of the attenuation coefficient for various models of cast iron. The main modeled characteristics of the transducer include the directivity characteristic and the change in the signal amplitude along the acoustic axis. It is shown that for cast iron with flake graphite, there are cases when the directivity of the probe with a phased array transmitted into the cast iron is practically absent.

General Properties of Non-alloyed Grey Cast Irons (or Low Alloy) and Flake Graphite

2018 ◽  
pp. 65-90
Author(s):  
José Antonio Pero-Sanz Elorz ◽  
Daniel Fernández González ◽  
Luis Felipe Verdeja
Keyword(s):  
Flake Graphite ◽  
Cast Irons ◽  
General Properties ◽  
Grey Cast

Effects of flake graphite on property optimisation in thermal conductive composites based on polyamide 66

2017 ◽  
Vol 46 (6) ◽  
pp. 266-276 ◽  
Author(s):  
Duxin Li ◽  
Qian Chen ◽  
Yisha Yang ◽  
Yue Chen ◽  
Chunguang Xiao
Keyword(s):  
Flake Graphite ◽  
Polyamide 66 ◽  
Conductive Composites

scholarly journals Preserving Flake Size in an African Flake Graphite Ore Beneficiation Using a Modified Grinding and Pre-Screening Process

Minerals ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 115 ◽  
Author(s):  
Kangkang Sun ◽  
Yangshuai Qiu ◽  
Lingyan Zhang
Keyword(s):  
Flake Graphite ◽  
Screening Process
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