needle coke particle shape

needle coke particle shape

Effect of crystallinity and particle size on coke-based ...

03-11-2020  Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the effects of crystalline properties on particle shape after pulverization. Needle coke with outstanding crystallinity had high initial efficiency, and smaller particles with larger specific surface areas saw increased irreversible capacity due to the formation of SEI layers.

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Influence of particle shape on the rheological behavior of ...

of particle shape on the rheological behavior of three-phase ... (e.g. xanthan, schizophyllan) viruses or coke particles, is of high interest. Accordingly, the rheology of anisotropic, non-Brownian particle suspensions has been explored for a century ... (needle-shaped), a pair

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Cokes - Carbon and Graphite

Needle coke. Needle coke is the commonly used term for a special type of coke with extremely high graphitizability resulting from a strong preferred parallel orientation of its turbostratic layer structure and a particular physical shape of the grains. Click here for the production process of needle coke. Typical needle coke properties.

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Influence of coke structure on the properties of the ...

01-09-1985  The more anisotropic the coke, the more needle-like the shape of the particles11. Such a shape is needed to produce premium electrodes3 and imparts desired properties to the log during extrusion and subsequent processing. Particle strength The particle strength of the coke is important as it dictates the type of formulation which can be produced.

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Needle Coke Particle Shape - mayukhportfolio.co

Particle size, particle shape, chemical identification, purity and rheology characterization to Get a quote. ... needle coke particle shape; 200 mesh particle size ... Read more Shamokin Filler Co., Inc. Shamokin, Pennsylvania, PA 17872

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Validity of particle size analysis techniques for ...

measurements for particle size analysis of the COA needles. LD has known limitations for anisotropic particles, however, where the analysis of irregular shaped particles can lead to inaccuracies in the particle size distribution. The fundamental influence of particle shape on LD measurements has featured extensively in the literature.17-20

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2004: ISOTROPIC GRAPHITE FROM NEEDLE COKE

Key Words: needle coke, isotropic coke, optical domain, coherent domain, nuclear ... the raw coke and es 4 igure 4. Step 4 flour particle from calcined Figure 5.

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Effect of crystallinity and particle size on coke-based ...

Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the effects of crystalline properties on particle shape after pulverization. Needle coke with outstanding crystallinity had high initial efficiency, and smaller particles with larger specific surface areas saw increased irreversible capacity due to the formation of SEI layers.

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Needle Coke Particle Shape - mayukhportfolio.co

Particle size, particle shape, chemical identification, purity and rheology characterization to Get a quote. ... needle coke particle shape; 200 mesh particle size ... Read more Shamokin Filler Co., Inc. Shamokin, Pennsylvania, PA 17872

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The Importance of Particle Shape - Horiba

Particle Processes Powder flow; spheres flow easily, needles do not Liquid flow; increased aspect ratio will increase viscosity Powder mixing; blend time may change with shape Also VERY associated with size, hard sometimes to separate size and shape

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Influence of particle shape on the rheological behavior of ...

1. Left: SEM images of the used PCC powders with different particle shapes: (a) plate-shaped, (b) spherical, (c) scalenohedral, (d) needle-shaped. Black dots in the background of the images result from sample preparation. Right: Particle size analysis of the used PCC powders. Differential particle size distribution q3 and sum distribution Q3 were

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Effect of needle‐like crystal shape on measured particle ...

The effect crystal morphology has on measured particle size distributions (PSDs) is explored, with a focus on particles exhibiting a needle‐like habit. An idealized in silico study was performed, targeted at modeling the measurement principles of various particle sizing devices, namely laser diffraction, Coulter counter, focused beam reflectance measurement, a single and a dual projection imaging devices.

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Particle engineering of needle shaped crystals by wet ...

01-11-2018  Particle shape was altered through a combination of wet milling and temperature cycling. Image analysis was used to measure the length and width of the needle shaped particles. Powder handling was quantified using shear cell and bulk density measurements. Roller compaction trials were used to demonstrate improvements in processability.

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2004: ISOTROPIC GRAPHITE FROM NEEDLE COKE

Key Words: needle coke, isotropic coke, optical domain, coherent domain, nuclear ... the raw coke and es 4 igure 4. Step 4 flour particle from calcined Figure 5.

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Modelling of artefacts in estimations of particle size of ...

1973). Such long thin particles of approximately cylindrical shape are similar to needle-like particles often encountered in pharmaceutical and chemical manufacturing. For example, in Fig. 1 we show typical particles of cellobiose octaacetate, benzoic acid and metformin hydro-chloride. As needle-like particles are modelled as infinitely long

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Validity of particle size analysis techniques for ...

occurs during drying of needle shaped particles, however, for full quantitative analysis, image analysis is required. The algorithm used in analysis of LD data assumes the scattering particles are spherical regardless of the actual shape of the particles under evaluation. FBRM

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Influence of particle size and shape properties on cake ...

precipitation enabled us to produce several sphere, cube, plate and needle shapes. Once the different shapes had been obtained, they were sent to a metallographic laboratory for SEM expertise. An imaging software analysed the pictures and provided the particle size and volume and a volume shape factor for each particle.

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Effect of crystallinity and particle size on coke-based ...

Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the effects of crystalline properties on particle shape after pulverization. Needle coke with outstanding crystallinity had high initial efficiency, and smaller particles with larger specific surface areas saw increased irreversible capacity due to the formation of SEI layers.

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Petroleum Cokes Scroll Petrographic Atlas SIU

High Resolution Image (300 dpi) Description: Coke derived from a petroleum feedstock that shows a very fine-grained granular texture. Note the coarser grain size at the edges of the particle. The fine-grained area may be the initial stage of a shot structure.

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Influence of particle shape on the rheological behavior of ...

1. Left: SEM images of the used PCC powders with different particle shapes: (a) plate-shaped, (b) spherical, (c) scalenohedral, (d) needle-shaped. Black dots in the background of the images result from sample preparation. Right: Particle size analysis of the used PCC powders. Differential particle size distribution q3 and sum distribution Q3 were

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The Importance of Particle Shape - Horiba

Particle Processes Powder flow; spheres flow easily, needles do not Liquid flow; increased aspect ratio will increase viscosity Powder mixing; blend time may change with shape Also VERY associated with size, hard sometimes to separate size and shape

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2004: ISOTROPIC GRAPHITE FROM NEEDLE COKE

Key Words: needle coke, isotropic coke, optical domain, coherent domain, nuclear ... the raw coke and es 4 igure 4. Step 4 flour particle from calcined Figure 5.

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The role of particle shape engineering in the ...

a needle-like shape. The needle-like shaped crystals are difficult to process and to formulate. The downstream processes after the crystallization are affected (e.g. filtration, washing, drying and milling) as well as the formulation processes (e.g. mixing, compacting and tableting). The needle-like crystals are sensitive to mechanical stress, the bulk density is low

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Effect of needle‐like crystal shape on measured particle ...

The effect crystal morphology has on measured particle size distributions (PSDs) is explored, with a focus on particles exhibiting a needle‐like habit. An idealized in silico study was performed, targeted at modeling the measurement principles of various particle sizing devices, namely laser diffraction, Coulter counter, focused beam reflectance measurement, a single and a dual projection imaging devices.

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Petroleum coke - Wikipedia

Needle coke, also called acicular coke, is a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries and is particularly valuable because the electrodes must be replaced regularly. Needle coke is produced exclusively from either fluid catalytic cracking (FCC) decant oil or coal tar pitch.

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Intrinsic Electrochemical Characteristics in the ...

The intrinsic electrochemical characteristics of needle-like LiCoO 2 crystals with a hexagonal cylindrical shape were studied by the single particle measurement technique. The needle-like LiCoO 2 crystals were synthesized by the flux growth method. Single-particle Raman spectroscopy and galvanostatic charge-discharge tests at different electrical

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CHARACTERIZATION OF POWDER PARTICLE MORPHOLOGY

Particle shape depends on the duration of milling: with an increase of time, milling particle obtains smooth spherical shape. In Table 2, the results of milling WC-Co hardmetal in a disintegrator are given [12,13]. The shape factors EL, DP, and RN were determined by two different image analysis systems: DIPS [14] and Image-Pro Plus 3.0 [15].

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