METHOD OF OBTAINING GRANULAR CARBAMIDE Russian patent published in 1995 - IPC

Abstract SU 1823213 A1

FIELD: production of granular carbamide. SUBSTANCE: method involves spraying of carbamide melt in granulating tower; cooling of melt drops by providing contact with cooling agent to temperature below melt drop hardening temperature, with only liquid carbon dioxide being used as cooling agent; throttling of liquid carbon dioxide so that gas and solid particles are obtained; maintaining atmospheric pressure in tower. Carbon dioxide used as cooling agent is introduced in an amount sufficient for withdrawal of heat emitted during cooling and hardening of carbamide. Carbon dioxide discharged from tower is subjected to compression and fed for recycling. EFFECT: reduced discharge of ammonia and carbamide into environment and provision for changing of tower dimensions. 2 dwg, 1 tbl

Similar patents SU1823213A1

Title Year Author Number
METHOD OF GRANULATED CARBAMIDE PRODUCING 1987
  • Kucherjavyj V.I.
  • Sergeev Ju.A.
  • Sineva K.N.
  • Savinova V.A.
  • Semina G.V.
  • Simagin N.V.
SU1462732A1
METHOD OF PRODUCTION OF GRANULATED CARBAMIDE AND GRANULATION TOWER FOR REALIZATION OF THIS METHOD 2004
  • Perminov Jurij Ivanovich
  • Fokeev Aleksandr Pavlovich
  • Gusev Ivan Vladimirovich
  • Cheblakov Nikolaj Valentinovich
  • Skudin Aleksej Georgievich
  • Soldatov Aleksej Vladimirovich
  • Pechnikova Galina Nikolaevna
  • Prokop'Ev Aleksandr Alekseevich
  • Kostin Oleg Nikolaevich
  • Kuznetsov Nikolaj Mikhajlovich
  • Esin Igor' Veniaminovich
RU2281270C1
METHOD FOR PRODUCTION OF GRANULATED CARBAMIDE 1987
  • Kucherjavyj V.I.
  • Sergeev Ju.A.
  • Lebedev V.V.
  • Basargin B.N.
  • Gusev A.I.
  • Tsesareva T.I.
  • Simagin N.V.
RU1519176C
COOLER AND PRILLS OR GRANULES COOLING METHOD 2017
  • Gusev Vladimir Ivanovich
RU2674951C1
DEVICE FOR GRANULATING MELTS 1994
  • Shchugarev V.D.
  • Chindjaskin V.A.
RU2049538C1
METHOD AND INSTALLATION FOR OBTAINING GRANULATED CARBAMIDE 2008
  • Sergeev Jurij Andreevich
  • Cheblakov Nikolaj Valentinovich
  • Vorob'Ev Aleksandr Andreevich
  • Anderzhanov Rinat Venerovich
  • Golovin Jurij Aleksandrovich
  • Soldatov Aleksej Vladimirovich
  • Prokop'Ev Aleksandr Alekseevich
  • Kostin Oleg Nikolaevich
  • Kuznetsov Nikolaj Mikhajlovich
  • Esin Igor' Veniaminovich
RU2396252C1
METHOD OF PRODUCING UREA 0
  • Kolomazov Boris Ivanovich
  • Budanov Yurij Nikolaevich
  • Gorshkov Valerij Nikolaevich
  • Gusev Vladimir Ivanovich
  • Kucheryavyj Vladimir Ivanovich
  • Selin Aleksandr Nikolaevich
  • Melenin Yurij Sergeevich
SU883020A1
DEVICE FOR OBTAINING GRANULES FROM MELT 1994
  • Shchugarev V.D.
  • Chindjaskin V.A.
RU2049540C1
GRANULATING METHOD OF MINERAL FERTILIZERS 2018
  • Taran Yuliya Aleksandrovna
RU2680686C1
METHOD OF GRANULATION OF MINERAL FERTILIZERS 2016
  • Taran Yuliya Aleksandrovna
RU2640336C2

SU 1 823 213 A1

Authors

Kucherjavyj V.I.

Bordukov V.A.

Gorbushenkov V.A.

Sergeev Ju.A.

Semina G.V.

Orekhov A.V.

Dates

1995-05-27Published

1988-05-05Filed