Characterization and performance evaluation of fly ash-derived heavy-medium material. Final report

Technical Report · Thu Mar 31 04:00:00 EST 1983

OSTI ID:5543108

Birlingmair, D; Murtha, M; Killmeyer, R

This project was divided into two tasks: Task A, in which fly ash-derived heavy-medium materials were characterized and Task B, in which the performance of such material in a heavy-medium cyclone was evaluated. In Task A, suspensions of several heavy-media materials, both fly ash-derived (FAM) and commercial, were evaluated in a test loop to determine physical and chemical characteristics, media stabilities and rheologies, particle durability, abrasion of equipment materials, and flow circuit power requirements. The FAM was found to have a lower density and a higher magnetics content than the commercial magnetite. Neither material experienced significant attrition during 300-hour test runs. The FAM suspensions resulted in a lower or equal abrasion rate on the various equipment materials tested. For those materials tested, the order of resistance to abrasion was (from high to low): stainless steel, aluminum, brass, and black iron. In Task B, the performance characteristics of a heavy-medium cyclone using a commercial magnetite and two FAMs were evaluated to compare separation efficiencies. In general, at a specific gravity of separation of about 1.325, the commercial magnetite yielded the sharpest separation (Ep of 0.021), with the coarse fly ash-derived material (FA1) providing the next best (Ep 0.036), and the fine FAM (FA2) resulting in the poorest (Ep 0.050). 15 references, 29 figures, 15 tables.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5543108
• Report Number(s): IS-4839; ON: DE84001858
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
010800 -- Coal
Lignite
& Peat-- Waste Management
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ABRASION
AEROSOL WASTES
ALLOYS
ALUMINIUM
ASHES
BRASS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHROMIUM ALLOYS
COAL PREPARATION
COMPARATIVE EVALUATIONS
CONCENTRATORS
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION RESISTANT ALLOYS
DATA
DENSITY
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
FLY ASH
HEAVY MEDIA SEPARATION
INFORMATION
IRON
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
MAGNETIC SEPARATORS
MAGNETITE
MATERIALS
METALS
MINERALS
NUMERICAL DATA
ORES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESIDUES
RHEOLOGY
SEPARATION PROCESSES
STAINLESS STEELS
STEELS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE PRODUCT UTILIZATION
WASTES
ZINC ALLOYS