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IPC

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Application

97113261/04, 1997-07-31

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Actual filing date

1997-07-31

(45)

Published

1998-10-20

(72)

Inventor

Bazhenov V.P.Shuverov V.M.Rjabov V.G.Veselkin V.A.Kuz'Min V.I.Makarov A.D.Alikin M.A.Pitirimov V.S.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF PRODUCING OXIDIZED BITUMEN Russian patent published in 1998 - IPC

Abstract RU 2120461 C1

FIELD: petroleum processing. SUBSTANCE: air is passed at elevated temperature through mixture of residual products of petroleum processing: goudron (fraction 500 CЦdry point), asphalt obtained from propane-deasphalting of residue (580 C-dry point) of deep vacuum distillation of mazut, and additionally taken off fraction (480-610 C) at weight ratio 40:(40-60):(20-50), respectively. Method enables increasing plasticity of bitumen (penetration of bitumen is increased by 88% and its ductility increased by 44% with the same softening temperature), increasing penetration index of bitumen to +0.4, and decreasing Fraas brittle point by 8 C. EFFECT: improved characteristics of bitumen. 1 tbl, 16 ex

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RU 2 120 461 C1

Authors

Bazhenov V.P.

Shuverov V.M.

Rjabov V.G.

Veselkin V.A.

Kuz'Min V.I.

Makarov A.D.

Alikin M.A.

Pitirimov V.S.

Dates

1998-10-20—Published

1997-07-31—Filed