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2 091 302

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IPC

(21) (22)

Application

95111984/25, 1995-07-11

(22)

Actual filing date

1995-07-11

(45)

Published

1997-09-27

(72)

Inventor

Rjabchikov Aleksandr Alekseevich[Ua]Perepad'Ja Nikolaj Petrovich[Ua]Zarubin Vladimir Mikhajlovich[Ua]Guba Natal'Ja Borisovna[Ua]

(73)

Holder

Maloe Predprijatie

METHOD OF ABSORPTION OF NITROGEN OXIDES Russian patent published in 1997 - IPC

Abstract RU 2091302 C1

FIELD: production of ammonium nitrate. SUBSTANCE: method for production comprises successively absorbing nitrogen oxides first with 35-55% nitric acid and then with concentrated solution of ammonium nitrate. Content of nitrogen oxides in gas is 3-8% when ammonium nitrate is absorbed with concentrated solutions. Oxides are absorbed at pressure of at least 0.5 MPa. EFFECT: more efficient absorption method. 2 cl, 1 dwg, 1 tbl

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RU 2 091 302 C1

Authors

Rjabchikov Aleksandr Alekseevich[Ua]

Perepad'Ja Nikolaj Petrovich[Ua]

Zarubin Vladimir Mikhajlovich[Ua]

Guba Natal'Ja Borisovna[Ua]

Dates

1997-09-27—Published

1995-07-11—Filed