Zeolite with rare earth element-substituted framework and method for producing same, and nox adsorber, selective catalytic reduction catalyst and automobile exhaust gas catalyst comprising same

2:

• The zeolite with a rare earth element-substituted framework according to claim 1, wherein the zeolite with a rare earth element-substituted framework has a crystal structure of aluminosilicate in powder X-ray diffractometry.

3:

• The zeolite with a rare earth element-substituted framework according to claim 1, wherein the zeolite is at least one selected from the group consisting of NH4 type zeolite and H+ type zeolite.

4:

• The zeolite with a rare earth element-substituted framework according to claim 1, wherein the zeolite with a rare earth element-substituted framework has an average particle size D50 of 1 μm or larger and 500 μm or smaller.

6:

• The method according to claim 5, wherein
• the zeolite with a rare earth element-substituted framework has a crystal structure of aluminosilicate in powder X-ray diffractometry.

7:

• The method according to claim 5, wherein the zeolite is at least one member selected from the group consisting of NH4 type zeolite and H+ type zeolite.

8:

• The method according to claim 5, wherein the zeolite with a rare earth element-substituted framework has an average particle size D50 of 1 μm or larger and 500 μm or smaller.

9:

• A selective catalytic reduction catalyst comprising:
• a zeolite with a rare earth element-substituted framework according to claim 1.

10:

• A formed article of a selective catalytic reduction catalyst prepared by:
• forming a composition comprising a zeolite with a rare earth element-substituted framework according to claim 1 into a predetermined shape.

11:

• A NOx adsorber comprising:
• a zeolite with a rare earth element-substituted framework according to claim 1.

12:

• A NOx adsorption member prepared by:
• forming a composition comprising a zeolite with a rare earth element-substituted framework according to claim 1 into a predetermined shape.

13:

• A laminated NOx adsorption member comprising:
• a support and a NOx adsorption layer disposed on at least one side of the support,
• the NOx adsorption layer comprising at least a zeolite with a rare earth element-substituted framework according to claim 1.

14:

• A catalyst for exhaust gas comprising:
• a support and a catalyst layer disposed on at least one side of the support,
• the catalyst layer comprising at least a zeolite with a rare earth element-substituted framework according to claim 1.