Process for removal of mineral particulates from coal-derived liquids

Patent · Tue Jan 01 00:00:00 EST 1980

OSTI ID:863519

McDowell, William J ^[1]

---

1. Knoxville, TN

Suspended mineral solids are separated from a coal-derived liquid containing the solids by a process comprising the steps of: (a) contacting said coal-derived liquid containing solids with a molten additive having a melting point of 100.degree.-500.degree. C. in an amount of up to 50 wt. % with respect to said coal-derived liquid containing solids, said solids present in an amount effective to increase the particle size of said mineral solids and comprising material or mixtures of material selected from the group of alkali metal hydroxides and inorganic salts having antimony, tin, lithium, sodium, potassium, magnesium, calcium, beryllium, aluminum, zinc, molybdenum, cobalt, nickel, ruthenium, rhodium or iron cations and chloride, iodide, bromide, sulfate, phosphate, borate, carbonate, sulfite, or silicate anions; and (b) maintaining said coal-derived liquid in contact with said molten additive for sufficient time to permit said mineral matter to agglomerate, thereby increasing the mean particle size of said mineral solids; and (c) recovering a coal-derived liquid product having reduced mineral solids content. The process can be carried out with less than 5 wt. % additive and in the absence of hydrogen pressure.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4191628
• OSTI ID: 863519
• Country of Publication: United States
• Language: English

Related Subjects

process
removal
mineral
particulates
coal-derived
liquids
suspended
solids
separated
liquid
containing
comprising
steps
contacting
molten
additive
melting
100
degree
-500
amount
50
wt
respect
effective
increase
particle
size
material
mixtures
selected
alkali
metal
hydroxides
inorganic
salts
antimony
lithium
sodium
potassium
magnesium
calcium
beryllium
aluminum
zinc
molybdenum
cobalt
nickel
ruthenium
rhodium
iron
cations
chloride
iodide
bromide
sulfate
phosphate
borate
carbonate
sulfite
silicate
anions
maintaining
contact
sufficient
time
permit
matter
agglomerate
increasing
mean
recovering
product
reduced
content
carried
absence
hydrogen
pressure
coal-derived liquids
metal hydroxides
containing solids
solids content
mineral matter
containing solid
process comprising
alkali metal
particle size
material selected
liquid product
sufficient time
metal hydroxide
amount effective
coal-derived liquid
hydrogen pressure
liquid containing
organic salt
derived liquids
inorganic salt
/208/