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2 115 690

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Application

96116563/04, 1996-08-13

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Actual filing date

1996-08-13

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Published

1998-07-20

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Inventor

Khajrudinov I.R.Kutlugil'Din N.Z.Istomin N.N.Gaskarov N.S.Sultanov F.M.Mjachin S.I.Lishtakov A.I.Zhirnov B.S.Imashev B.U.Krizskij G.I.Plevin G.V.

(73)

Holder

Institut Problem Neftekhimpererabotki An Respubliki Bashkortostan

METHOD OF PITCH PRODUCTION Russian patent published in 1998 - IPC

Abstract RU 2115690 C1

FIELD: petrochemistry. SUBSTANCE: method includes heat polymerization of initial raw materials in one of sections of two-section apparatus to produce pitch. In this case, vapors of light products of heat polycondensation are supplied through a device to other section of apparatus for fractionation. In the course of fractionation distillate fraction is selected and vapors are withdrawn. Vapors are cooled and separated into gases and distillate fraction. It is advisable to mix produced pitch with initial raw material in capacity of recirculate. EFFECT: minimum number of process apparatuses, reduced losses of volatile substances and increased content of alpha-fraction in produced pitch to improve service characteristics. 2 cl, 1 tbl

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RU 2 115 690 C1

Authors

Khajrudinov I.R.

Kutlugil'Din N.Z.

Istomin N.N.

Gaskarov N.S.

Sultanov F.M.

Mjachin S.I.

Lishtakov A.I.

Zhirnov B.S.

Imashev B.U.

Krizskij G.I.

Plevin G.V.

Dates

1998-07-20—Published

1996-08-13—Filed

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