FIELD: compositions; catalytic systems; exhaust gas emission control systems.
SUBSTANCE: invention relates to a composition for use in a catalytic system in exhaust gas emission control systems containing a material based on transitional alumina and a rare earth phosphate, and to a method for producing the same. The composition for use as a carrier in a catalytic system in exhaust gas emission control systems contains: i) a transitional aluminium oxide material and ii) a rare earth phosphate that has a crystallite size of less than 50 nm after the composition is tempered at 1000°C for 3 hours. The invention also relates to a process for preparing a composition for use as a carrier in a catalytic system.
EFFECT: improvement of carriers for porous coatings based on rhodium, resistant to thermal stresses.
13 cl, 3 dwg, 2 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST SUPPORT COMPOSITION FOR ACCUMULATION OF NITROGEN OXIDES | 2018 |
|
RU2769079C2 |
| ALUMINA COMPOSITES WITH LARGE PORE VOLUME AND LARGE SURFACE AREA OBTAINED FROM ALUMINUM OXIDE TRIHYDRATE, METHODS FROM PREPARATION THEREOF AND USE | 2000 |
|
RU2259232C2 |
| EPOXIDATION METHOD | 2016 |
|
RU2744761C2 |
| CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY | 2012 |
|
RU2608741C2 |
| METHOD OF PRODUCING NANOSTRUCTURED POWDERS OF SOLID SOLUTIONS BASED ON YTTRIUM-ALUMINUM GARNET WITH RARE-EARTH ELEMENT OXIDES | 2018 |
|
RU2700062C1 |
| PRECIPITATED AND CALCINED COMPOSITION BASED ON ZIRCONIUM OXIDE AND CERIUM OXIDE | 2014 |
|
RU2648072C2 |
| MIXED STRONTIUM ALUMINATE OXIDE AND METHOD FOR PRODUCTION THEREOF | 2020 |
|
RU2825753C2 |
| NO RETAINING MATERIALS AND TRAPS RESISTANT TO THERMAL AGEING | 2009 |
|
RU2504431C2 |
| CATALYST ON SILICA-CLAD ALUMINA SUPPORT | 2010 |
|
RU2520223C2 |
| FISCHER-TROPSCH PROCESS CATALYST (VARIATIONS) AND A METHOD FOR PREPARATION THEREOF | 2002 |
|
RU2292238C2 |
