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Physical and Chemical Properties of Respirable Coal Mine Dust.

PB222490

Publication Date	1972
Personal Author	Corn, M.; Stein, F.; Hammad, Y.; Manekshaw, S.; Bell, W.
Page Count	158
Abstract	The purpose of the investigation was to develop and demonstrate the feasibility of techniques to determine selected properties of respirable coal mine dust. An approved underground horizontal elutriator that samples air at 36 cfm was designed, fabricated, and used in this study to collect respirable coal mine dust in three mines representing the Pittsburgh, Lower Freeport, and Lower Kittanning coal seams. Analytical procedures for measurement of respirable dust sample particle size, density, random projected area, total surface area, and chemical composition are presented. Results of analyses of three samples collected in each mine are presented. No improvement in mining technology was expected or achieved. The methods that were developed for the characterization of particles are of doubtful value because of the large mass of dust required for the analyses. (Modified author abstract)
Keywords	Coal dust Particle size Coal mines Particle size distribution Chemical analysis Physical properties Area
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry 48A - Mineral Industries
Corporate Authors	Pittsburgh Univ., PA. Dept. of Occupational Health.
Document Type	Technical Report
Title Note	Final rept. Jun 70-Jul 72.
NTIS Issue Number	197319

Physical and Chemical Properties of Respirable Coal Mine Dust.

Physical and Chemical Properties of Respirable Coal Mine Dust.
PB222490

Publication Date	1972
Personal Author	Corn, M.; Stein, F.; Hammad, Y.; Manekshaw, S.; Bell, W.
Page Count	158
Abstract	The purpose of the investigation was to develop and demonstrate the feasibility of techniques to determine selected properties of respirable coal mine dust. An approved underground horizontal elutriator that samples air at 36 cfm was designed, fabricated, and used in this study to collect respirable coal mine dust in three mines representing the Pittsburgh, Lower Freeport, and Lower Kittanning coal seams. Analytical procedures for measurement of respirable dust sample particle size, density, random projected area, total surface area, and chemical composition are presented. Results of analyses of three samples collected in each mine are presented. No improvement in mining technology was expected or achieved. The methods that were developed for the characterization of particles are of doubtful value because of the large mass of dust required for the analyses. (Modified author abstract)
Keywords	Coal dust Particle size Coal mines Particle size distribution Chemical analysis Physical properties Area
Source Agency	Invalid Source Agency Code
NTIS Subject Category	99F - Physical & Theoretical Chemistry 48A - Mineral Industries
Corporate Authors	Pittsburgh Univ., PA. Dept. of Occupational Health.
Document Type	Technical Report
Title Note	Final rept. Jun 70-Jul 72.
NTIS Issue Number	197319