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2 607 332

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(51)

IPC

C05B11/00(2006-01-01)

(21) (22)

Application

2015104281, 2015-02-10

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Start date

2015-02-10

(22)

Actual filing date

2015-02-10

(45)

Published

2017-01-10

(72)

Inventor

Levin Boris VladimirovichNorov Andrej MikhajlovichOvchinnikova Klavdiya NikolaevnaMalyavin Andrej StanislavovichFedotov Pavel SergeevichSidelnikov Aleksandr VladimirovichPukhov Ilya GennadievichAfanasev Vladimir Viktorovich

(73)

Holder

Aktsionernoe Obshchestvo Institut Po Udobreniyam I Insektofungitsidam Imeni Professora Ya.V. Samojlova"

METHOD OF PRODUCING COMPOUND FERTILISER Russian patent published in 2017 - IPC C05B11/00

Abstract RU 2607332 C2

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. Method for producing compound fertiliser involves decomposition of phosphate raw material by phosphoric and sulphuric acid mixture at high temperature, treatment of produced pulp by neutralising reagent containing calcium carbonate, granulation, and drying of finished product; decomposition acid solution H₃PO₄: H₂SO₄ rate is equal to (0.68-1.26):1, wherein phosphoric acid used is non-evaporated phosphoric acid, and decomposition is carried out at temperature of 90–100 °C.

EFFECT: invention increases decomposition degree of phosphate material and simplifies production technology.

3 cl, 5 ex

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RU 2 607 332 C2

Authors

Levin Boris Vladimirovich

Norov Andrej Mikhajlovich

Ovchinnikova Klavdiya Nikolaevna

Malyavin Andrej Stanislavovich

Fedotov Pavel Sergeevich

Sidelnikov Aleksandr Vladimirovich

Pukhov Ilya Gennadievich

Afanasev Vladimir Viktorovich

Dates

2017-01-10—Published

2015-02-10—Filed