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(19)

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2 620 229

(13)

(51)

IPC

C22B59/00(2006-01-01)

C22B60/02(2006-01-01)

C22B3/06(2006-01-01)

(21) (22)

Application

2016109328, 2016-03-15

(24)

Start date

2016-03-15

(22)

Actual filing date

2016-03-15

(45)

Published

2017-05-23

(72)

Inventor

Shagalov Vladimir VladimirovichEgorov Nikolaj BorisovichSobolev Vasilij Igorevich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Issledovatelskij Tomskij Politekhnicheskij Universitet"

METHOD OF EXPLOSION OF MONACTIVES CONCENTRATE Russian patent published in 2017 - IPC C22B59/00 C22B60/02 C22B3/06

Abstract RU 2620229 C1

FIELD: chemistry.

SUBSTANCE: opening of monazite is carried out with phosphoric acid at a temperature of 300 to 550°C, within 1-2 hours. Dissolve the resulting melt is carried out with a solution of phosphoric acid. A solution containing thorium and the rare earth elements, cooled and filtered from the insoluble precipitate. Rare earth elements and thorium is removed from the solution on ion exchange resins, and the purified phosphoric acid is used for the opening of the next batch of monazite concentrate.

EFFECT: reducing costs by returning the reagent to the process.

3 ex

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RU 2 620 229 C1

Authors

Shagalov Vladimir Vladimirovich

Egorov Nikolaj Borisovich

Sobolev Vasilij Igorevich

Dates

2017-05-23—Published

2016-03-15—Filed