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(19)

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2 804 426

(13)

(51)

IPC

C01B25/226(2006-01-01)

B01J2/14(2006-01-01)

C01F11/46(2006-01-01)

(21) (22)

Application

2022133567, 2022-12-20

(24)

Start date

2022-04-12

(22)

Actual filing date

2022-12-20

(45)

Published

2023-09-29

(72)

Inventor

Klassen Petr VladimirovichKesoian Gevorg ArutiunovichIvanov Viktor PetrovichKlassen Tatiana Sergeevna

(73)

Holder

Klassen Petr VladimirovichKesoian Gevorg ArutiunovichIvanov Viktor PetrovichKlassen Tatiana Sergeevna

GRANULES FOR PRODUCING EXTRACTION PHOSPHORIC ACID Russian patent published in 2023 - IPC C01B25/226 B01J2/14 C01F11/46

Abstract RU 2804426 C1

FIELD: chemical industry.

SUBSTANCE: granules are proposed for obtaining extractive phosphoric acid (EPA), having a size of 0.1 to 2.0 mm, comprising phosphate raw materials and a binder of calcium sulphate phospho-hemihydrate in an amount of from 1 to 20%. Phosphate raw material is an apatite concentrate, phosphorite or a mixture thereof.

EFFECT: invention makes it possible to provide a closed waste-free technology for obtaining EPA, to reduce losses of phosphate raw materials during transportation, storage and dosing.

2 cl, 1 tbl, 5 ex

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RU 2 804 426 C1

Authors

Klassen Petr Vladimirovich

Kesoian Gevorg Arutiunovich

Ivanov Viktor Petrovich

Klassen Tatiana Sergeevna

Dates

2023-09-29—Published

2022-12-20—Filed