Methods of preparing coal slurries with reagents for flotation

Journal Article · Sat Jan 01 04:00:00 EST 1983 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6722577

Sorokin, A F; Filippov, A I; Komarova, E V

The efficiency of coal flotation was studied by evaluating three different methods of slurry preparation: addition of inert materials (magnetite and quartz powders); vacuum treatment; and treatment without aeration. It was found that addition of magnetite had practically no effect on the efficiency of flotation for fine sludges (below 0.1mm), but significantly increased efficiency of flotation for coarse sludges (0.5-0.1mm). A vacuum of about 75 kilopascals was used to treat the slurries both before and after addition of reagents. Cleaning efficiency increased by vacuum treatment only after addition of reagents. An unaerated slurry preparation was found to be the most significant in improving efficiency of flotation. 6 references, 2 figures, 3 tables.

• OSTI ID: 6722577
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 8; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
AERATION
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL PREPARATION
COAL
COAL PREPARATION
DISPERSIONS
EFFICIENCY
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUEL SLURRIES
FUELS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
LOW PRESSURE
MAGNETITE
MATERIALS
MINERALS
MIXTURES
OPTIMIZATION
ORES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PRESSURE EFFECTS
QUARTZ
REAGENTS
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SLURRIES
SUSPENSIONS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS