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2 228 933

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IPC

(21) (22)

Application

2003107941/04, 2003-03-25

(24)

Start date

2003-03-25

(22)

Actual filing date

2003-03-25

(45)

Published

2004-05-20

(72)

Inventor

Afanas'Ev V.V.Zefirov N.S.Zalepugin D.Ju.Kalashnikov V.V.Kogan E.G.Kozlova A.E.Korolev V.L.L'Vov I.A.Mishin V.S.Poljakov V.S.Til'Kunova N.A.Tolokonnikova Ju.V.Tomilova L.G.Chernyshova I.V.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Organicheskoj Khimii I Tekhnologii Moskva, Sh. Ehntuziastov,Institut Fiziologicheski Aktivnykh Veshchestv Ran Moskovskaja Obl., P. Chernogolovka

CONTINUOUS PROCESS FOR PRODUCTION OF PROPYLENE CARBONATE VIA PROPYLENE OXIDE CARBOXYLATION REACTION IN PRESENCE OF PHTHALOCYANINE CATALYSTS Russian patent published in 2004 - IPC

Abstract RU 2228933 C1

FIELD: polymer production. SUBSTANCE: invention relates to manufacturing monomers, in particular propylene carbonate used in production of novel polymer: poly(propylene carbonate). Propylene carbonate is obtained via continuous propylene oxide carboxylation with carbon dioxide in presence of, as catalyst, unsubstituted or tert-butyl-substituted phthalocyanine-aluminum chloride on inert carrier, in particular granulated adsorbent: Zelite 535. Process is conducted at 150 C, pressure 40 at, and carbon dioxide-to-propylene oxide molar ratio about 144:1. EFFECT: prolonged catalyst lifetime and increased yield of product. 3 dwg, 2 ex

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RU 2 228 933 C1

Authors

Afanas'Ev V.V.

Zefirov N.S.

Zalepugin D.Ju.

Kalashnikov V.V.

Kogan E.G.

Kozlova A.E.

Korolev V.L.

L'Vov I.A.

Mishin V.S.

Poljakov V.S.

Til'Kunova N.A.

Tolokonnikova Ju.V.

Tomilova L.G.

Chernyshova I.V.

Dates

2004-05-20—Published

2003-03-25—Filed