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2 009 114

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IPC

(21) (22)

Application

5012920/04, 1991-09-17

(22)

Actual filing date

1991-09-17

(45)

Published

1994-03-15

(72)

Inventor

Gogoleva T.Ja.Didenko L.I.Karpukhin E.A.Krasulja M.A.Butsinskaja L.I.

(73)

Holder

Gogoleva Tamara JakovlevnaDidenko Leonid IvanovichKarpukhin Evgenij AleksandrovichKrasulja Marina AleksandrovnaButsinskaja Lilija Ivanovna

METHOD FOR RAW ANTHRACENE PRODUCTION Russian patent published in 1994 - IPC

Abstract RU 2009114 C1

FIELD: coke industry. SUBSTANCE: anthracene fraction is mixed with naphthalene-containing oil having boiling away temperature 205-230 C. The process is followed by cooling thus prepared mixture to 40-55 C, uncrystallized liquid phase being separated at relieved pressure. Solid phase is heated to 85-90 C simultaneously with freshly prepared liquid phase separation. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 009 114 C1

Authors

Gogoleva T.Ja.

Didenko L.I.

Karpukhin E.A.

Krasulja M.A.

Butsinskaja L.I.

Dates

1994-03-15—Published

1991-09-17—Filed