Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Using molten additive – e.g. – heat carrier – etc.
Patent
1989-10-11
1991-10-22
Myers, Helane E.
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Using molten additive, e.g., heat carrier, etc.
208406, 208405, 208428, 208429, 44608, 44620, 44621, 44622, 44624, 44627, 423DIG12, 201 17, C10G 100
Patent
active
050593072
ABSTRACT:
In a process for reducing the sulfur and ash contents of coal, coal is sequentially contacted with fused alkali metal caustic, water, carbonic acid, and a strong acid. Caustic removed from the coal by the water and the carbonic acid is recovered as anhydrous caustic for again contacting coal.
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Hart Walter D.
Meyers Robert A.
Van Nice, deceased Leslie J.
Van Nice, heir Leslie J.
Farber Michael B.
Goldstein Sol L.
Myers Helane E.
Sheldon Jeffrey G.
TRW Inc.
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