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2 458 164

(13)

(51)

IPC

C22B60/02(2006-01-01)

C22B3/24(2006-01-01)

(21) (22)

Application

2011122157/02, 2011-05-31

(24)

Start date

2011-05-31

(22)

Actual filing date

2011-05-31

(45)

Published

2012-08-10

(72)

Inventor

Golubeva Tat'Jana Evgen'EvnaTaltykin Sergej Evgen'EvichTatarnikov Aleksej Viktorovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Khimicheskoj Tekhnologii"

METHOD OF ION-EXCHANGE URANIUM EXTRACTION FROM SULFURIC SOLUTIONS AND PULPS Russian patent published in 2012 - IPC C22B60/02 C22B3/24

Abstract RU 2458164 C1

FIELD: metallurgy.

SUBSTANCE: method includes uranium sorption by anion exchange resin, uranium de-sorption from saturated anion exchange resin by sulphuric acid and obtaining finished product from strippant. Note that uranium de-sorption from saturated anion exchange resin is done by sulphuric acid solution with concentration 70-100 g/l with the presence of 1-2 mole/l of ammonia sulphate.

EFFECT: decrease of sulphuric acid content in desorbing solution and rich eluate and reduction of sulphuric acid consumption, decrease of desorbing solution flow and anion exchange resin ratio at de-sorption, increase of uranium content in rich eluate at decrease of rich eluate volume and decrease of uranium residual content by 1-2 levels in anion exchange resin after de-sorption.

1 tbl, 3 ex, 2 dwg

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RU 2 458 164 C1

Authors

Golubeva Tat'Jana Evgen'Evna

Taltykin Sergej Evgen'Evich

Tatarnikov Aleksej Viktorovich

Dates

2012-08-10—Published

2011-05-31—Filed