Dust Levels, Particle-Size Distributions, and Chemical Compositions of Dust in Cotton Warehouse-Compress Systems

1979 ◽  
Vol 22 (3) ◽  
pp. 0622-0629
Author(s):  
R. A. Wesley ◽  
David F. Brown ◽  
P. J. Wakelyn
Keyword(s):  
Particle Size ◽  
Chemical Compositions ◽  
Size Distributions ◽  
Particle Size Distributions

scholarly journals Controlled synthesis, characterization and thermal properties of Mg2B2O5

2010 ◽  
Vol 8 (4) ◽  
pp. 758-765 ◽  
Author(s):  
Ayşe Üçyıldız ◽  
İsmail Girgin
Keyword(s):  
Particle Size ◽  
Thermal Properties ◽  
Single Phase ◽  
Xrd Analysis ◽  
Solid State Reactions ◽  
Chemical Compositions ◽  
Controlled Synthesis ◽  
Size Distributions ◽  
Optimum Conditions ◽  
Particle Size Distributions

AbstractOptimum conditions for synthesizing monoclinic and triclinic Mg2B2O5 compounds by high-temperature solid-state reactions were investigated. Mixtures composed of boric acid and magnesium oxide at MgO:B2O3 mole ratios of 1:0.25, 1:0.5 and 1:1.5 were heated for 1 hour at temperatures between 600–1050°C and the formed phases were identified by XRD analysis. Monoclinic Mg2B2O5 was formed by heating at 850°C for 4 hours together with minimum amounts of triclinic Mg2B2O5, while triclinic Mg2B2O5 was formed as a single phase at 1050°C for the same reaction time. The products obtained at optimum conditions were subjected to a series of tests to determine their chemical compositions, particle size distributions, surface area values, IR spectra and TG/DTA patterns.

The Magnetic Performance of the Particles of Steel Slag Powder

2014 ◽  
Vol 881-883 ◽  
pp. 1199-1202
Author(s):  
Bo Zhang ◽  
Jin Hu
Keyword(s):  
Particle Size ◽  
Magnetic Separation ◽  
Steel Slag ◽  
Chemical Compositions ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Magnetic Performance ◽  
Slag Powder ◽  
Mineral Compositions ◽  
The Difference

The magnetic performance of steel slag is special because it has a high content of Fe2O3. In this study, the difference of chemical compositions, mineral compositions, and particle size distributions between the two parts of steel slag by magnetic separation was investigated. The results show that the difference of chemical compositions especially the main oxide contents between the two parts of steel slag by magnetic separation is very small. And the difference of mineral compositions between the two parts of steel slag by magnetic separation is also very small. However, the particle size distributions of the two parts of steel slag by magnetic separation may differ from each other when steel slag contains many coarse particles.

254. A Comparison of the Particle Size Distributions for Aerosols Generated During Wet Grinding and Dry Deburring of Beryllium

1999 ◽  
Author(s):  
K.K. Ellis ◽  
R. Buchan ◽  
M. Hoover ◽  
J. Martyny ◽  
B. Bucher-Bartleson ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Wet Grinding

Measurements of Mineral Particle Size Distributions by a Buoyancy Weighing Method

2010 ◽  
Vol 126 (10/11) ◽  
pp. 577-582 ◽  
Author(s):  
Katsuhiko FURUKAWA ◽  
Yuichi OHIRA ◽  
Eiji OBATA ◽  
Yutaka YOSHIDA
Keyword(s):  
Particle Size ◽  
Mineral Particle ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Weighing Method

Certain Problems with the Application of Stochastic Diffusion Processes for the Description of Chemical Engineering Phenomena. Diffusional Change of Solid Particle Size

1996 ◽  
Vol 61 (4) ◽  
pp. 536-563
Author(s):  
Vladimír Kudrna ◽  
Pavel Hasal
Keyword(s):  
Particle Size ◽  
Solid Particle ◽  
Chemical Engineering ◽  
Diffusion Processes ◽  
Granular Systems ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Diffusion Term ◽  
Population Balances ◽  
And Diffusion

To the description of changes of solid particle size in population, the application was proposed of stochastic differential equations and diffusion equations adequate to them making it possible to express the development of these populations in time. Particular relations were derived for some particle size distributions in flow and batch equipments. It was shown that it is expedient to complement the population balances often used for the description of granular systems by a "diffusion" term making it possible to express the effects of random influences in the growth process and/or particle diminution.

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