METHOD FOR OBTAINING COMPOUNDED BITUMEN Russian patent published in 2015 - IPC C10C3/04 C10C3/00 

FIELD: oil and gas industry.

SUBSTANCE: method involves oxidation of oil refining residue with addition of copper-containing still organic residue of production of acrylic acid and further mixing with the oil refining residue; with that, amount of the additive is not more than 2.5 wt % per oxidation raw material.

EFFECT: method allows utilising a copper-containing still organic residue of production of acrylic acid so that commercial product is obtained, ie compounded bitumen, increasing a fraction of non-oxidised oil refining residue in compounded bitumen.

2 cl, 5 tbl, 2 ex