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IPC

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Application

2001127990/15, 2001-10-15

(24)

Start date

2001-10-15

(22)

Actual filing date

2001-10-15

(45)

Published

2003-11-27

(72)

Inventor

Molchanova T.V.Shatalov V.V.Peganov V.A.Vodolazov L.I.Litvinenko V.G.Gorbunov V.A.

(73)

Holder

Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii"

METHOD FOR SORPTION EXTRACTION OF URANIUM FROM SILICON-CONTAINING SOLUTIONS AND PULPS Russian patent published in 2003 - IPC

Abstract RU 2217380 C2

FIELD: chemical technology. SUBSTANCE: invention relates to sorption of uranium from solutions and pulps. Anionite saturated with uranium is subjected for alkaline treatment and repeated contact with the parent solution or pulp. Method involves multiple consecutive carrying out alkaline treatment and repeated contact of anionite with the parent solution or pulp. Concentration of alkaline solution beginning from the second stage of alkaline treatment is reduced by 10-90% of the concentration at the first stage. Invention provides the enhancement of degree of saturation of anionites, reducing their poisoning with silicon, reducing concentration of uranium in disposal solutions. EFFECT: improved extraction method. 1 tbl

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RU 2 217 380 C2

Authors

Molchanova T.V.

Shatalov V.V.

Peganov V.A.

Vodolazov L.I.

Litvinenko V.G.

Gorbunov V.A.

Dates

2003-11-27—Published

2001-10-15—Filed