CPC Main Group
C10G 19/00 Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment
4 direct subcodes
Child Classifications
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- C10G 19/02 with aqueous alkaline solutions
- C10G 19/067 with molten alkaline material
- C10G 19/073 with solid alkaline material
- C10G 19/08 Recovery of used refining agents