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2 027 697

(13)

C1

(51)

IPC

(21) (22)

Application

4935516/04, 1991-05-12

(22)

Actual filing date

1991-05-12

(45)

Published

1995-01-27

(72)

Inventor

Borisov A.P.Makhaev V.D.

(73)

Holder

Institut Novykh Khimicheskikh Problem Ran

METHOD OF PREPARING OF VOLATILE ACETYLACETONATES OF RARE-EARTH METALS Russian patent published in 1995 - IPC

Abstract RU 2027697 C1

FIELD: chemical technology. SUBSTANCE: product - volatile acetylacetonates of rare-earth metals, for example, Lu-Lu-acetylacetonate3 in the form of white crystals, yield is 73%; Sc-Sc-acetylacetonate3, 0.9 g; Yb-Yb-acetylacetonate3, yield is 81% in the form of white crystals. Product is sublimated from the reaction mixture at 160 C (at 0.1 mm mercury column). Reagent 1: sodium acetylacetonate. Reagent 2: rare-earth metal chloride. Reaction conditions: vibration following sublimation of the end product. EFFECT: improved method of product preparing. 1 tbl

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RU 2 027 697 C1

Authors

Borisov A.P.

Makhaev V.D.

Dates

1995-01-27—Published

1991-05-12—Filed

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