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2 344 113

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(51)

IPC

C05C1/00(2006-01-01)

(21) (22)

Application

2007126025/15, 2007-07-09

(24)

Start date

2007-07-09

(22)

Actual filing date

2007-07-09

(45)

Published

2009-01-20

(72)

Inventor

Abramov Oleg BorisovichBojkov Sergej VladimirovichZhuravlev Vladimir NikolaevichZakharova Ol'Ga MikhajlovnaKiselevich Petr ViktorovichKoshcheev Vladimir Anatol'EvichMedjantseva Dar'Ja Gennad'EvnaMukhacheva Tat'Jana EfimovnaNaumov Anatolij Alekseevich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo Mineral'Nykh Udobrenij Kirovo-Chepetskogo Khimicheskogo Kombinata" Kchkhk")

METHOD OF CALCIUMAZOTOSULPHATE FERTILISER PRODUCTION Russian patent published in 2009 - IPC C05C1/00

Abstract RU 2344113 C1

FIELD: chemistry.

SUBSTANCE: invention refers to production method of complex fertiliser containing nitrogen, calcium and sulphur, and application thereof in chemical industry. Substance of method consists in preparation of aqueous pulp of humidity 5÷15 wt %, containing ammonia nitrate and sulphate and calcium salts, and granulation thereof in granulating drum. Granulation includes pulp mixed ammonium nitrate solution and ammonium sulphate in mass ratio NH₄NO₃:(NH₄)₂SO₄, equal to (2.7÷4.8):1. Prepared mixed pulp is steamed and added with calciumcarbonate-containing reagent in mass ratio CaCO₃:(NH₄)₂SO₄ equal to (0.6÷0.9):1.

EFFECT: production of fertiliser meeting current requirements of particle-size distribution with base grain size 2÷5 mm.

4 cl, 1 ex

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RU 2 344 113 C1

Authors

Abramov Oleg Borisovich

Bojkov Sergej Vladimirovich

Zhuravlev Vladimir Nikolaevich

Zakharova Ol'Ga Mikhajlovna

Kiselevich Petr Viktorovich

Koshcheev Vladimir Anatol'Evich

Medjantseva Dar'Ja Gennad'Evna

Mukhacheva Tat'Jana Efimovna

Naumov Anatolij Alekseevich

Dates

2009-01-20—Published

2007-07-09—Filed