Patent ID: 8722565

Claim:
A method for applying a washcoat suspension to a support structure, wherein the method is carried out using a device ( 10 ) which is set up to produce, by means of a process gas ( 40 ) a fluid bed of support structures in which the support structures circulate elliptically or toroidally said method comprising the steps of: a) charging the device ( 10 ) with support structures and producing a support-structure fluid bed by means of a process gas ( 40 ), wherein the support structures circulate in the fluid bed elliptically or toroidally; b) impregnating the support structures with a washcoat suspension by spraying the support structures circulating elliptically or toroidally in the fluid bed with the washcoat suspension; c) drying the support structures sprayed with the washcoat suspension; and d) optionally calcining the support structures loaded with the solids contents of the washcoat suspension.