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Application

98114775/12, 1998-07-29

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Start date

1998-07-29

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Actual filing date

1998-07-29

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Published

1999-11-20

(72)

Inventor

Lysenko A.A.Astashkina O.V.Shevchenko A.O.Udal'Tsova N.N.Ibragimova R.I.Khramkova N.V.Timoshenko S.I.Krjukova O.V.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Universitet Tekhnologii I Dizajna

METHOD OF PURIFICATION OF CARBON SORBENT Russian patent published in 1999 - IPC

Abstract RU 2141450 C1

FIELD: purification of water to trap heavy metals, organic compounds, including colorants. SUBSTANCE: cellulose material is treated in two stages: in first stage heat treatment is carried out at 300-350 C for 180-210 minutes and material is then gradually cooled to 20 C for 30-120 minutes, and second heat treatment is carried out at 700- 720 for 120-150 minutes. EFFECT: simplified process of preparing carbon sorbent and absence of activator and protective medium of process and shorter, duration thereof, increased yield of final products and high sorption activity of the carbon sorbent. 2 cl, 1 tbl

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RU 2 141 450 C1

Authors

Lysenko A.A.

Astashkina O.V.

Shevchenko A.O.

Udal'Tsova N.N.

Ibragimova R.I.

Khramkova N.V.

Timoshenko S.I.

Krjukova O.V.

Dates

1999-11-20—Published

1998-07-29—Filed

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