Investigation of a new reagent system for coal slurry flotation

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

OSTI ID:6046598

Petukhov, V N

The flotation activity of the reagent mixture depends on the group chemical composition of both frothing and collecting agents. The best results were obtained using oxides and 1,3-dioxane derivatives as frother in conjunction with collectors containing unsaturated and aromatic hydrocarbons. Flotability of low rank coal can be improved by the use of reagents in which aromatic and unsaturated compounds with double bonds predominate, such as an absorbent or a light oil. The introduction of an epichlorhydrin modifier intensifies the flotation action: this is due to the formation of polar chemical compounds or longer carbon radical complexes. The modifier tends to become adsorbed on the surface of the particles where it alters the adsorption and the bond strength of the reagents.

• OSTI ID: 6046598
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 11; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
AROMATICS
ASHES
ASIA
CHEMICAL COMPOSITION
COAL PREPARATION
COMPARATIVE EVALUATIONS
COST
DISPERSIONS
EASTERN EUROPE
EFFICIENCY
EUROPE
FLOTATION
FOAM SEPARATION
FUELS
KEROSENE
LIQUID FUELS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
QUANTITY RATIO
REAGENTS
RESIDUES
SEPARATION PROCESSES
SLURRIES
SUSPENSIONS
USSR
YIELDS