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2 245 856

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IPC

(21) (22)

Application

2003124990/03, 2003-08-14

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Start date

2003-08-14

(22)

Actual filing date

2003-08-14

(45)

Published

2005-02-10

(72)

Inventor

Amitin A.V.Bljakhman L.I.Valetdinov R.F.Elin O.L.Krylova E.K.Mjachin S.I.Panfilov V.A.Prokopenko A.V.Sapronova S.V.Sherstobitov A.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju I Maleinovyj Angidridy, Ehkologija"

METHOD FOR PRODUCTION OF PLASTICIZER Russian patent published in 2005 - IPC

Abstract RU 2245856 C1

FIELD: high effective plasticizer for concrete mixes.

SUBSTANCE: claimed method includes sulfonation of naphthalene cut from petrochemical process, in particular naphthalene cut of process stream from benzene production, followed by condensation with formaldehyde and neutralization of obtained product with alkali. Naphthalene cut contains (mass %) naphthalene 96.4-99.5; methylnaphtalene 0.01-0.2; biphenyl 0.001-0.1; low boiling additives (e.g. alkyl benzene, methylinden, tetralin_ 0.5-3.6.

EFFECT: enhanced raw base for production of concrete mix plasticizers.

4 cl, 1 tbl

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RU 2 245 856 C1

Authors

Amitin A.V.

Bljakhman L.I.

Valetdinov R.F.

Elin O.L.

Krylova E.K.

Mjachin S.I.

Panfilov V.A.

Prokopenko A.V.

Sapronova S.V.

Sherstobitov A.A.

Dates

2005-02-10—Published

2003-08-14—Filed