CPC Main Group
C10G 17/00 Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge
5 direct subcodes
Child Classifications
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- C10G 17/02 with acids or acid-containing liquids, e.g. acid sludge
- C10G 17/08 with acid-forming oxides (refining with CO2 or SO2 as a selective solvent C10G21/06)
- C10G 17/09 with acid salts
- C10G 17/095 with "solid acids", e.g. phosphoric acid deposited on a carrier
- C10G 17/10 Recovery of used refining agents