In-plant testing of microbubble column flotation
A project to evaluate the performance of the Virginia Tech Microbubble Column Flotation (MCF) process in an operating coal preparation plant was initiated during this past quarter. The project is concerned with the collection of process operating data using a 30-inch diameter column, and using this data to scale-up to a prototype, full-scale plant column. The work is being carried out at the Marrowbone Preparation Plant owned by the Shell Mining Corporation. Work has primarily concentrated on finalizing the project work plan (Task 2.1 -- Project Planning), instrumenting the 30-inch diameter column (Task 2.2 -- Advanced Instrumentation) and conducting a preliminary parametric study to evaluate the performance of the column (Task 2.3 -- Detailed Testing). To date, the column has been consistently capable of producing a 9.5% ash product at a 61% combustible recovery from a -150 mesh classifying cyclone overflow containing 55--60% ash at 3--5% solids. Tests conducted over an extended period of time indicate that the column consistently maintains grade in spite of fluctuations in the feed characteristics. 12 figs.
- Research Organization:
- Virginia Center for Coal and Minerals Processing, Blacksburg, VA (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC22-89PC89909
- OSTI ID:
- 6584154
- Report Number(s):
- DOE/PC/89909-T2; ON: DE91000011
- Country of Publication:
- United States
- Language:
- English
Similar Records
In-plant testing of microbubble column flotation
In-plant testing of microbubble column flotation