Patent ID: 8524072

Claim:
A method of purification of pure fractions and gas condensate from mercaptans by processing of oil raw material with air in the presence of a catalyst, comprising the steps of using a catalyst for alkali-free purification of oil raw materials, consisting of a metalocomplex selected from the group consisting of a solid metalocomplex and a liquid metalocomplex with a general formula (Cu II Cl) 2 O(L 1 ) 2-4 (L 2 ) 1-4 , where Li is aminoalcohol, L2 is acetonitryl or single atom alcohol, wherein as the aminoalcohol a compound of a general formula N(R 1 )(R 2 )(R 3 )(OH) 1-3 is utilized, where R 1 =C 2 H 4 , R 2 =H, C 2 H 4 , C 2 H 5 , R 3 =H, C 2 H 4 , CnH 2n+1 , where n=2-17.