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2 241 016

(13)

(51)

IPC

(21) (22)

Application

2002132059/04, 2002-11-28

(24)

Start date

2002-11-28

(22)

Actual filing date

2002-11-28

(45)

Published

2004-11-27

(72)

Inventor

Andrejkov E.I.Kurkin V.V.Pistrova P.D.Tsaur A.G.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Uglekhimicheskij Institut"Oao

METHOD OF PREPARING BINDING DITCH FOR ELECTRODE MATERIALS Russian patent published in 2004 - IPC

Abstract RU 2241016 C2

FIELD: electrode industry.

SUBSTANCE: coal pitch or its mixture with coal tar fractions, or with pitch distillates is treated with air within temperature range 35-380^oC at air consumption below 10 m³/t^.h and than subjected to heat aging at 350-380^oC for 5 to 12 h.

EFFECT: enabled high-yield preparation of standard sorts of binding pitch with high content of α-fraction and reduced yield of volatiles from low-pyrolized coal tar.

3 tbl, 7 ex

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RU 2 241 016 C2

Authors

Andrejkov E.I.

Kurkin V.V.

Pistrova P.D.

Tsaur A.G.

Dates

2004-11-27—Published

2002-11-28—Filed