METHOD OF COOLING MOLTEN MELAMINE Russian patent published in 2013 - IPC C07D251/60 

Abstract RU 2495875 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of cooling molten melamine using water and aqueous solutions, which can be used in industrial production of melamine. Disclosed method involves cooling molten melamine with water to temperature of 130-230°C in a cooling zone with evaporation of water and formation of a solid melamine-water vapour gaseous suspension. Melamine is removed from the cooling zone in form of a solid melamine-water vapour gaseous suspension. Before removal from the cooling zone, nitrogen, air or a mixture thereof can be added to the formed solid melamine-water vapour gaseous suspension.

EFFECT: low degree of hydrolysis of melamine when cooling molten melamine with water and simple process.

2 cl, 1 dwg, 2 ex

Similar patents RU2495875C1

Title Year Author Number
MELAMINE PURIFICATION METHOD 2012
  • Nikolaev Evgenij Jur'Evich
  • Skudin Aleksej Georgievich
  • Pechnikova Galina Nikolaevna
  • Prokop'Ev Aleksandr Alekseevich
  • Kuznetsov Nikolaj Mikhajlovich
  • Kostin Oleg Nikolaevich
  • Esin Igor' Veniaminovich
RU2495876C1
METHOD FOR OBTAINING MELAMINE CYANURATE 2021
  • Malkov Viktor Sergeevich
  • Kalichkina Liudmila Evgenevna
RU2758252C1
METHOD OF PURIFYING SEWAGE WATERS OF MELAMINE PRODUCTION 2013
  • Nikolaev Evgenij Jur'Evich
  • Skudin Aleksej Georgievich
  • Pechnikova Galina Nikolaevna
  • Shishinov Aleksandr Vasil'Evich
  • Kuznetsov Nikolaj Mikhajlovich
  • Kostin Oleg Nikolaevich
  • Esin Igor' Veniaminovich
RU2544704C1
METHOD FOR ABRUPT COOLING OF EXHAUST GAS OF MELAMINE SYNTHESIS 2021
  • Gamba Simone
RU2825088C1
METHOD OF PRODUCING MELAMINE AND METHOD OF REMOVING DISSOLVED GASES FROM AQUEOUS SOLUTION OF CRUDE MELAMINE 2009
  • Nikolaev Evgenij Jur'Evich
  • Skudin Aleksej Georgievich
  • Soldatov Aleksej Vladimirovich
  • Prokop'Ev Aleksandr Alekseevich
  • Kuznetsov Nikolaj Mikhajlovich
  • Kostin Oleg Nikolaevich
  • Esin Igor' Veniaminovich
RU2417992C2
METHOD OF PRODUCTION OF MELAMINE FREE FROM MELEM AND SLAKING DEVICE 2002
  • Shreder Frank
  • Rjukh Vol'Fgang
  • Nojmjuller Kristof
  • Koglgruber Ferdinand
  • Vagner Gans Kristian
RU2304579C2
WATER RECIRCULATION IN INDUSTRIAL PROCESS OF MELAMIN PRODUCTION 2010
  • Shadt Arne
  • Shlesinger Robert
  • Demel Gregor
  • Nojmjuller Kristof
  • Khintermjuller Frants
RU2553982C2
IMPROVED METHOD OF MELAMINE PURIFICATION 2009
  • Noeh Serdzhio
  • Santuchchi Roberto
RU2497814C2
METHOD OF PURE MELAMINE PRODUCTION 2005
  • Rjukh Vol'Fgang
RU2367656C2
METHOD OF OBTAINING HIGHLY PURE MELAMINE FROM UREA 2009
  • Dzhankarlo S'Oli
RU2515885C2

RU 2 495 875 C1

Authors

Nikolaev Evgenij Jur'Evich

Skudin Aleksej Georgievich

Pechnikova Galina Nikolaevna

Prokop'Ev Aleksandr Alekseevich

Kuznetsov Nikolaj Mikhajlovich

Kostin Oleg Nikolaevich

Esin Igor' Veniaminovich

Dates

2013-10-20Published

2012-10-11Filed