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2 155 209

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IPC

(21) (22)

Application

98120261/04, 1998-11-13

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Start date

1998-11-13

(22)

Actual filing date

1998-11-13

(45)

Published

2000-08-27

(72)

Inventor

Safin R.R.Safiev O.G.Batyrov N.A.Sjunjaev R.Z.Bakiev T.A.Safieva R.Z.Buldakov A.G.

(73)

Holder

Safin Rishat RafilovichSafiev Oleg Ganijatovich

PROCESS FOR PRODUCTION OF BASE COMPONENTS FOR LOW-FREEZING LUBRICATION OILS Russian patent published in 2000 - IPC

Abstract RU 2155209 C2

FIELD: petroleum processing. SUBSTANCE: process including vacuum rectification to yield lube oils, purification of the latter with selective solvent, low-temperature deparaffination, vacuum distillation, and catalytic after-purification is distinguished by that said low- temperature deparaffination involves lube oil fraction with boiling range 280 to 460 C to yield dewaxed oil with freezing temperature from 50 to 60 C, which is distilled to separate light fraction with dry point 320-340 C and freezing temperature from 55 to 60 C and residual fraction boiling between 320 and 340-460 C. EFFECT: simplified process. 1 tbl, 5 ex

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RU 2 155 209 C2

Authors

Safin R.R.

Safiev O.G.

Batyrov N.A.

Sjunjaev R.Z.

Bakiev T.A.

Safieva R.Z.

Buldakov A.G.

Dates

2000-08-27—Published

1998-11-13—Filed