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2 054 389

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Application

93041472/26, 1993-08-17

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Actual filing date

1993-08-17

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Published

1996-02-20

(72)

Inventor

Poluehktov P.T.Azarova N.I.Zeleneva O.A.Semenov A.M.Grajver Ju.M.Terichev N.M.Jurkina L.L.Rivin Eh.M.Skul'Skij A.S.

(73)

Holder

Gosudarstvennoe Predprijatie Voronezhskij Filial Nauchno-Issledovatel'Skogo Instituta Sinteticheskogo Kauchuka Im.S.V.Lebedeva

METHOD FOR SELECTIVE EXTRACTION OF ANION-ACTIVE SURFACTANTS FROM SEWAGE Russian patent published in 1996 - IPC

Abstract RU 2054389 C1

FIELD: sewage treatment. SUBSTANCE: method involves acidification, treatment with amine at an elevated temperature, and separation of organic phase. Amine is constituted by tertiary aromatic amine in the form of 7-8.5% solution in petroleum oil in the following relation, aromatic amine : anion-active surfactant, 0.8-1.1:1.0 and pH 1.8-2.1. EFFECT: higher efficiency. 2 tbl

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RU 2 054 389 C1

Authors

Poluehktov P.T.

Azarova N.I.

Zeleneva O.A.

Semenov A.M.

Grajver Ju.M.

Terichev N.M.

Jurkina L.L.

Rivin Eh.M.

Skul'Skij A.S.

Dates

1996-02-20—Published

1993-08-17—Filed

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