Author: Kathleen Adams FrankiePublisher:
ISBN:
Category : Coal
Languages : en
Pages : 470
Book Description
A New Method for Determining Pyrite Size, Form, Microlithotype Distribution in Coal with Applications for Characterizing Pyrite in Western Kentucky and Western Pennsylvania Channel Samples and Western Kentucky Prepared Coals
Author: Kathleen Adams FrankiePublisher:
ISBN:
Category : Coal
Languages : en
Pages : 470
Book Description
Energy Research Abstracts
Author: Pyrite Size Distribution and Coal-pyrite Particle Association in Steam Coals
Author: James T. McCartneyPublisher:
ISBN:
Category : Coal preparation
Languages : en
Pages : 26
Book Description
Validation of Image Analysis and Sample Pellet Preparation Methods for Estimating Pyrite Particle Size Distribution in Crushed Coals
Author: Gino A. IrdiPyrite in Coal
Author: Jamie Reyes-NavarroPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 141
Book Description
Selected Trace Element Distributions in Pyrite in the Coal Seams of Western Kentucky
Author: James E. BlumthalPublisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 168
Book Description
A Microscope System Using Automated Reflectance Scanning to Study Coal Components
Author: James Thomas McCartneyPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 24
Book Description
A Technique for the Particle Size Analysis of Coal Pyrites
Author: Lionel L. CraddockPublisher:
ISBN:
Category : Pyrites
Languages : en
Pages : 24
Book Description
Evaluation of Pyrite Particle Size, Shape, and Distribution Factors for Coal Channel Samples
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The size and nature of pyrite crystals in coal has been examined by electron microscopy, with the view of assessing the potential for desulfurization at various stages of grinding (especially after grinding to approximately 200 mesh size which is often done just prior to combustion). (LTN).
Automated Microscopical Method for the Characterization of Pyrite in Coal
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Rapid Scan system of automated reflectance microscopy is a line scanning device capable of characterizing the pyrite content of a coal. The system combines a sophisticated software base with standard hardware components to provide flexibility in analytical format. As a prepared coal sample is moved automatically beneath the microscope objective, reflectance values from adjacent 2 .mu.m squares are sampled by the photomultiplier tube. These values are stored in computer memory for subsequent calculation of the volumetric proportion of pyrite in the sample. Simultaneously, the Rapid Scan also accumulates a distribution of pyrite chord lengths. In a modification of the Rosiwal linear scanning technique, the number of consecutive readings on a pyrite particle are recorded and stored independently in computer memory. In order to determine the precision of pyrite volume estimates, a suite of coals with varying pyrite content was analyzed at several sample-point densities. The level of precision achieved was found to be a function of sample density and was always superior to the precision of the conventional, visual point counting technique. From these data, sampling plans to achieve a desired level of analytical precision were designed. The ability of the Rapid Scan system to quickly characterize many samples of a feed coal in this manner, makes it a potentially effective tool in helping to optimize preparation facility operation for the removal of pyrite.