METHOD OF APPLYING CATALYTIC COATING ON CERAMIC NEUTRALIZER UNIT OF INTERNAL COMBUSTION ENGINE WORKED GASES Russian patent published in 2018 - IPC B01J37/08 B01J37/02 B01D53/94 

Abstract RU 2640412 C1

FIELD: chemistry.

SUBSTANCE: method involves forming a substrate of γalumina with a high specific surface area on the surface of a ceramic carrier by immersion in an aqueous suspension containing aluminium hydroxide (boehmite) and aluminium nitrate, followed by drying and heat treatment at 500-550°C, applying a catalytically active coating on the formed substrate from a solution of metal salts of variable valence in an organic solvent, drying and heat treating. The suspension for depositing the substrate further comprises aluminium hydroxide. The catalytically active coating is applied from a solution of the mixed copper salt of lower carboxylic acids, and the amount of solution necessary for a single application of the catalytic coating is evaluated in advance, the drying of the applied coating to a constant weight is carried out at 110-115°C, and its subsequent heat treatment is carried out in a current of air at a temperature of 500-600°C for 60-80 minutes.

EFFECT: reducing the energy intensity of the method and reducing the time required for its implementation while ensuring efficiency.

4 cl, 2 dwg, 1 tbl, 2 ex

Similar patents RU2640412C1

Title Year Author Number
METHOD OF OBTAINING NANOSTRUCTURED CATALYTIC COATINGS ON CERAMIC CARRIERS FOR NEUTRALISATION OF WASTE GASSES OF INTERNAL COMBUSTION ENGINES 2010
  • Chernoivanov Vjacheslav Ivanovich
  • Mazalov Jurij Aleksandrovich
  • Merenov Aleksandr Vladimirovich
  • Bersh Aleksandr Valentinovich
  • Dunaev Anatolij Vasil'Evich
  • Pronskaja Tat'Jana Viktorovna
RU2515727C2
METHOD OF PREPARING CATALYST FOR TREATING INTERNAL COMBUSTION ENGINE EXHAUST GASES AND CATALYST OBTAINED BY THIS METHOD 2006
  • Drobakha Grigorij Sergeevich
  • Drobakha Elena Alekseevna
  • Solntsev Konstantin Aleksandrovich
RU2322296C1
METHOD OF PREPARING BLOCK CATALYST 2023
  • Vodiankina Olga Vladimirovna
  • Kharlamova Tamara Sergeevna
  • Grabchenko Mariia Vladimirovna
  • Lvova Ekaterina Sergeevna
RU2825302C1
METHOD OF PREPARING CATALYST FOR TREATING INTERNAL COMBUSTION ENGINE EXHAUST GASES AND CATALYST PREPARED BY THIS METHOD 2004
  • Drobakha Elena Alekseevna
  • Drobakha Grigorij Sergeevich
  • Solntsev Konstantin Aleksandrovich
RU2275962C1
METHOD OF PREPARATION OF PURIFICATION CATALYSTS OF INTERNAL COMBUSTION ENGINES EXHAUST GASES 2010
  • Ukraintsev Valerij Borisovich
  • Khokhrjakov Konstantin Anatol'Evich
RU2442651C1
METHOD OF PREPARING CATALYST FOR CLEANING WASTES GASES OF INTERNAL COMBUSTION ENGINES 2000
  • Drobakha E.A.
  • Solntsev K.A.
RU2190470C2
MANUFACTURING METHOD OF HONEYCOMB CERAMIC UNIT FOR CATALYTIC NEUTRALISER OF EXHAUST GASES OF INTERNAL COMBUSTION ENGINE, AND APPLICATION METHOD OF SUBSTRATE ONTO HONEYCOMB CERAMIC UNIT FOR CATALYTIC NEUTRALISER OF EXHAUST GASES 2014
  • Solov'Ev Rudol'F Jur'Evich
  • Kudrjashova Elizaveta Jur'Evna
  • Podzharaja Ksenija Sergeevna
RU2553004C1
PRODUCTION OF ICE RHENIUM- AND RUTHENIUM-BEARING CATALYTIC NEUTRALISERS 2012
  • Mal'Chikov Gennadij Danilovich
  • Fesik Elena Valer'Evna
RU2514382C1
METHOD OF PREPARING CATALYST FOR PURIFICATION OF EXHAUST GASES OF COMBUSTION ENGINES AND CATALYST OBTAINED THEREOF 2012
  • Solntsev Konstantin Aleksandrovich
  • Drobakha Elena Alekseevna
  • Drobakha Grigorij Sergeevich
  • Drobakha Sergej Aleksandrovich
RU2502561C1
METHOD OF PRODUCTION OF THE PLATINUM CATALYST USED FOR PURIFICATION OF THE EXHAUST GASES OF THE INTERNAL COMBUSTION ENGINES 2005
  • Grebnev Veniamin Vladimirovich
  • Mal'Chikov Gennadij Danilovich
  • Golubev Oleg Nikolaevich
  • Fesik Elena Valer'Evna
  • Tupikova Elena Nikolaevna
RU2307709C1

RU 2 640 412 C1

Authors

Koldaev Nikolaj Vladimirovich

Zorin Andrej Vladimirovich

Grivanova Olga Vladimirovna

Dates

2018-01-09Published

2017-03-13Filed