Recovering glass from urban refuse by froth flotation

Technical Report · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6519052

Heginbotham, J H

As part of the total metallurgical system to recover metals from secondary resources, the Bureau of Mines conducted froth flotation research, using cationic reagents to recover glass from urban refuse. Batch flotation tests showed that high-quality cullet can be obtained from glass-rich aggregates derived from municipal incinerator residues and unburned refuse. This was confirmed by pilot plant operations treating 350 pounds of flotation feed per hour. Aggregates containing 85 to 90% glass were wet-ground to minus 20 mesh, deslimed in two stages, and fed to flotation cells. The glass was selectively floated using an amine collector, usually in an amount under 0.2 pound per ton of solids in the feed. The glass concentrates from the rougher cells were cleaned by refloating two or three times. Over 90% of the glass in the deslimed feed was recovered in the cleaned concentrates.

• Research Organization: Bureau of Mines, College Park, MD (USA). Avondale Metallurgy Research Center
• OSTI ID: 6519052
• Report Number(s): BM-RI-8327
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
FLOTATION
GLASS
INDUSTRIAL PLANTS
MANAGEMENT
MATERIALS RECOVERY
MUNICIPAL WASTES
OPERATION
PERFORMANCE
PROCESSING
RECOVERY
SEPARATION PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PROCESSING PLANTS
WASTES