Selective flotation of inorganic sulfides from coal
Patent
·
OSTI ID:867110
- Floreffe, PA
- Murrysville, PA
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.
- Research Organization:
- Pittsburgh Energy Technology Center
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Number(s):
- US 4867868
- OSTI ID:
- 867110
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/209/44/
acid
agent
blended
carbonaceous
carbonaceous material
cell
clean
clean coal
coal
coal flotation
coarse
collector
depressant
float
flotation
following
frothing
humic
humic acid
inorganic
leaving
material
pyrite
pyritic
pyritic sulfur
removal
removed
selective
selectively
sulfides
sulfur
underflow
acid
agent
blended
carbonaceous
carbonaceous material
cell
clean
clean coal
coal
coal flotation
coarse
collector
depressant
float
flotation
following
frothing
humic
humic acid
inorganic
leaving
material
pyrite
pyritic
pyritic sulfur
removal
removed
selective
selectively
sulfides
sulfur
underflow