Selective flotation of inorganic sulfides from coal
Patent
·
OSTI ID:6444800
Pyritic sulfur is removed from coal or other carbonaceous material through the use of humic acid as a coal flotation depressant. Following the removal of coarse pyrite, the carbonaceous material is blended with humic acid, a pyrite flotation collector and a frothing agent within a flotation cell to selectively float pyritic sulfur leaving clean coal as an underflow. 1 fig., 2 tabs.
- Research Organization:
- USDOE Pittsburgh Energy Technology Center, PA
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7200100
- Application Number:
- ON: DE89009659
- OSTI ID:
- 6444800
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ADDITIVES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
HUMIC ACIDS
INVENTIONS
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PYRITE
REMOVAL
SEPARATION PROCESSES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ADDITIVES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
HUMIC ACIDS
INVENTIONS
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PYRITE
REMOVAL
SEPARATION PROCESSES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS