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Title: Process for removal of mineral particulates from coal-derived liquids

Abstract

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.

Inventors:
 [1]
  1. Knoxville, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863519
Patent Number(s):
4191628
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

McDowell, William J. Process for removal of mineral particulates from coal-derived liquids. United States: N. p., 1980. Web.
McDowell, William J. Process for removal of mineral particulates from coal-derived liquids. United States.
McDowell, William J. Tue . "Process for removal of mineral particulates from coal-derived liquids". United States. https://www.osti.gov/servlets/purl/863519.
@article{osti_863519,
title = {Process for removal of mineral particulates from coal-derived liquids},
author = {McDowell, William J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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