US 7,410,930 B2 · Recovering catalyst and carrier by exfoliating overcoat layer on the surface of a catalyst layer

Abstract

The present invention is a method for recovering a catalyst from a catalyst body comprising a carrier having a catalyst layer formed on at least a part of the surface thereof, which comprises (a) a step of forming an overcoat layer on the surface of the catalyst layer, and (b) a step of allowing the catalyst body having the overcoat layer formed thereon to stand under the condition to result in a difference in expansibility or contractility exhibited by the overcoat layer from that exhibited by the carrier, wherein exfoliation of the catalyst layer from the carrier is permitted by means of the resulting difference in expansibility or contractility under the condition.

Claims15

Dependent claims

A method for recovering a catalyst from a catalyst body comprising a carrier having a catalyst layer formed on at least a part of the surface thereof, said method comprising:

(a) a step of forming an overcoat layer on the surface of said catalyst layer, and
(b) a step of allowing said catalyst body having said overcoat layer formed thereon to stand under the condition to result in a difference in expansibility or contractility exhibited by said overcoat layer from that exhibited by said carrier,
wherein exfoliation of said catalyst layer from said carrier is permitted by means of the resulting difference in expansibility or contractility under the condition.

Dependencies are inferred from the claim text.

Recovering catalyst and carrier by exfoliating overcoat layer on the surface of a catalyst layer

Life of this patent

Recovering catalyst and carrier by exfoliating overcoat layer on the surface of a catalyst layer

Life of this patent

Abstract

Claims15