Flotation properties of methylisobutylcarbinol for Kuzbas coals

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5521022

Shchegoleva, E N; Antipenko, L A

About 17% of Kuzbas coals are currently cleaned by flotation, but the flotation technology cannot be regarded as adequately developed. Reagent consumptions are high, much coal is lost in the tailings and the cost is considerable. Efficient cleaning is largely a question of reagent usage. Correctly selected reagents can improve the concentrate quality at lower reagent costs, reduce coal losses in the tailings and speed up the flotation process. Moreover, they can also improve the conditions in allied processes (froth control, filtration, water clarification, slurry thickening). In recent years, coal flotation has been widely based on the use of individual chemical compounds as collecting and/or frothing agents. One particularly important group comprises the synthetic alcohols with long carbon chains (6 to 8 butylcarbinol is one such compound). The flotation properties of methylisobutylcarbinol were investigated in flotation tests on coals of grades K, G and Zh. The collecting properties of the reagent were evaluated from the results of frothless flotation tests. These showed that selectivity is highly dependent on the nature of the pulp. Thus the reagent is far more selective with respect to grade K coals than to grades Zh and G. At methylisobutylcarbinol consumptions up to 6.0 kg/ton, the concentrate yields were 69% for grade K, 31% for grade Zh and 25% for grade G. All three coals were processed efficiently by a mixture of methylisobutylcarbinol and fuel oil.

• OSTI ID: 5521022
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 5; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ASIA
CARBONACEOUS MATERIALS
COAL
COAL PREPARATION
COMMINUTION
COMPARATIVE EVALUATIONS
DATA
EASTERN EUROPE
ENERGY SOURCES
EUROPE
EXPERIMENTAL DATA
FLOTATION
FOSSIL FUELS
FUEL OILS
FUELS
INFORMATION
LIQUID FUELS
LOSSES
MATERIALS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
REAGENTS
SEPARATION PROCESSES
USSR