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2 199 738

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IPC

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Application

2001125511/04, 2001-09-19

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Start date

2001-09-19

(22)

Actual filing date

2001-09-19

(45)

Published

2003-02-27

(72)

Inventor

Gribanovskaja M.G.Privalenko A.N.Krasnaja L.V.Martalov S.A.Alatortsev E.I.Kalinin V.A.Martalov A.S.Azev V.S.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Mo Rf Primeneniju Topliv, Masel, Smazok I Spetsial'Nykh Zhidkostej Gosnii Po Khimmotologii)

METHOD OF DETERMINATION OF PRESENCE OF POUR-POINT DEPRESSANTS IN DIESEL FUELS Russian patent published in 2003 - IPC

Abstract RU 2199738 C1

FIELD: methods of analysis of diesel fuels for presence of pour-point depressants; obtaining on-line information on diesel fuel brand. SUBSTANCE: catalyst at volume ratio of 1:2 to 5 is added to diesel fuel sample, after which mixture is agitated and is held at temperature of 40 to 60 C for 50-10 s and then it is cooled to room temperature and after separation into phases, presence of pour- point depressants is judged from cloudiness of organic phase (diesel fuel); mixture of aqueous ammonia solution Cu(II) (C_Cu = 150 to 300 mg/cu.dm) and isopropyl alcohol taken at ratio of 1:2-3 is used as catalyst. EFFECT: facilitated and simplified procedure of analysis. 6 tbl

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RU 2 199 738 C1

Authors

Gribanovskaja M.G.

Privalenko A.N.

Krasnaja L.V.

Martalov S.A.

Alatortsev E.I.

Kalinin V.A.

Martalov A.S.

Azev V.S.

Dates

2003-02-27—Published

2001-09-19—Filed