Bituminous coal reagent and flotation process

Patent · Tue Jun 05 04:00:00 EDT 1984

OSTI ID:6371126

McCarthy, J R

A reagent and a method for using the reagent for treating a solid material disposed in a liquid medium and having an oxygen-controlled surface condition. The reagent includes a liquid hydrocarbon, a reducing material and an activator material. The liquid hydrocarbon has a specific gravity different from the specific gravity of the liquid medium. The reducing material is present in an amount sufficient to establish a reducing environment around the solid material for breaking the oxygen control on the surface of the solid material. The activator material is present in an amount sufficient to establish an electrostatic charge on the solid material after the oxygen-controlled surface condition has been broken. A more specific feature of the invention is directed to the method of flotation of extremely fine bituminous coal having an oxygen-controlled surface condition. The reagent is useful in froth flotation processes and in bath flotation and separation processes.

• Assignee: EDB-86-014084
• Patent Number(s): US 4452714
• OSTI ID: 6371126
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ACETONITRILE
BITUMINOUS COAL
BLACK COAL
CARBON COMPOUNDS
CARBON SULFIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COAL PREPARATION
DENSITY
ELECTROSTATICS
ELEMENTS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
HYDROCARBONS
MATERIALS
NITRILES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN
PHOSPHORUS COMPOUNDS
PHOSPHORUS SULFIDES
PHYSICAL PROPERTIES
REAGENTS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
ZINC COMPOUNDS