METHOD OF ISOLATING AROMATIC HYDROCARBONS FROM THEIR MIXTURE WITH NONAROMATIC ONES Russian patent published in 2000 - IPC

Abstract RU 2145590 C1

FIELD: petrochemical industry. SUBSTANCE: isolation is accomplished via liquid extraction or extractive rectification with selective extractant based on glycol, water, and solvent. According to invention, the latter is high-dissolving capacity mixture of oligoethylene glycol monomethyl ethers with general formula CH₃O(CH₂CH₂O)_mH, wherein m is integer from 2 to 8, characterizing by average molecular weight 175-190. EFFECT: extended resource of accessible extractants with high selectivity and capacity regarding aromatic hydrocarbons, hydrolytic and thermal stability. 2 cl, 2 tbl, 10 ex

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RU 2 145 590 C1

Authors

Golubev Ju.D.

Rybakova I.N.

Sporova L.G.

Orekhov O.V.

Pirogova N.L.

Shein A.V.

Dates

2000-02-20—Published

1998-06-22—Filed