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2 224 789

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IPC

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Application

2002103114/13, 2002-02-04

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Start date

2002-02-04

(22)

Actual filing date

2002-02-04

(45)

Published

2004-02-27

(72)

Inventor

Rakhimov A.I.Kotljarevskij O.I.Khajmovich A.M.Rakova V.N.Nalesnaja A.V.Parkhomenko A.I.Otchenashev P.I.

(73)

Holder

Institut Khimicheskikh Problem Ehkologii Aen Rf

METHOD OF PRODUCING HIGHER ACID BLEND, GLYCEROL, AND SODIUM SULFATE CRYSTAL HYDRATE Russian patent published in 2004 - IPC

Abstract RU 2224789 C2

FIELD: fat-and-oil industry. SUBSTANCE: invention aims at improving processing of vegetable oil production wastes and proposes a method, which is accomplished through cleaving waste with 30-33% NaOH solution at temperature up to 95 C followed by neutralization with 75-77% aqueous sulfuric acid added at 50-60 C and ageing at 70-80 C. Fatty acids are separated at 10-25 C and crystal hydrate Na₂SO₄•10H₂O is filtered at temperature from - 5 to 0 C to leave 50-60% aqueous glycerol solution. EFFECT: enabled utilization vegetable oil production wastes to simultaneously produce high-quality fatty acid blend, glycerol, and sodium sulfate crystal hydrate. Tbl 1, ex 5

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RU 2 224 789 C2

Authors

Rakhimov A.I.

Kotljarevskij O.I.

Khajmovich A.M.

Rakova V.N.

Nalesnaja A.V.

Parkhomenko A.I.

Otchenashev P.I.

Dates

2004-02-27—Published

2002-02-04—Filed