Process for the manufacture of lubricating base oils and...

Details Process for the manufacture of lubricating base oils and... Process for the manufacture of lubricating base oils and...

C - Chemistry, Metallurgy

10

G

196/53

C10G 45/00 (2006.01) C10G 67/04 (2006.01)

Patent

CA 1249538

K 5642 A B S T R A C T PROCESS FOR THE MANUFACTURE OF LUBRICATING BASE OILS AND BASE OILS THUS PRODUCED Process for the manufacture of lubricating base oils from nitrogen-containing distillates and/or deasphalted oils by subjecting them to a catalytic hydrotreatment which may be followed by a dewaxing treatment, wherein distillates and/or deasphalted oils having a nitrogen content which numerically expressed exceeds the value f.PH2.Sv-1, wherein f is a constant relating to the viscosity of the final base oil, PH2 represents the hydrogen partial pressure in bar applied in the catalytic hydrotreatment and Sv represents the weighted hourly space velocity in t/m3.h at which the catalytic hydrotreatment is carried out, are subjected to a preceding solvent extraction. CGRH04

491148

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