# US 2019/0169037 A1 · PROCESS FOR THE PREPARATION OF A ZEOLITIC MATERIAL HAVING A FAU-TYPE FRAMEWORK STRUCTURE AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOx

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- Number: US 2019/0169037 A1
- Document ID: US20190169037A1
- Status: Published application
- Kind: A1
- Application number: 16/321,252
- Filed: 2017-07-28
- Published: 2019-06-06
- Earliest claimed: 2016-07-29
- Assignees: BASF SE
- Applicants: BASF Corporation
- Inventors: Natalia TRUKHAN; Alexander PANCHENKO; Ulrich MUELLER
- Web page: https://patentgrep.com/patent/US20190169037A1

## CPC

- C01B 39/205: {using at least one organic template directing agent; Hexagonal faujasite; Intergrowth products of cubic and hexagonal faujasite}
- B01D 53/9418: {for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas}
- B01J 20/18: Synthetic zeolitic molecular sieves
- B01J 29/14: Iron group metals or copper
- B01J 29/146: {Y-type faujasite}
- B01J 35/617: {500-1000 m2/g}
- B01J 37/0018: {Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)}
- B01J 37/0036: {Grinding}
- B01J 37/009: {Preparation by separation, e.g. by filtration, decantation, screening}
- B01J 37/0215: {Coating}
- B01J 37/0225: {of metal substrates}
- B01J 37/0236: {Drying, e.g. preparing a suspension, adding a soluble salt and drying}
- B01J 37/04: Mixing {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/06: Washing {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/08: Heat treatment {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/30: Ion-exchange
- C01B 39/22: Type X {(C01B39/205 takes precedence)}
- C01B 39/24: Type Y {(C01B39/205 takes precedence)}
- F01N 3/0807: {by using absorbents or adsorbents}
- F01N 3/2066: {Selective catalytic reduction [SCR]}
- B01D 2255/50: Zeolites
- B01J 2229/186: not in framework positions
- C01P 2002/72: by d-values or two theta-values, e.g. as X-ray diagram
- C01P 2006/12: Surface area
- F01N 2370/04: Zeolitic material
- F01N 2370/24: Zeolitic material
- F01N 2510/063: zeolites
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## Abstract

The present invention relates to a process for the preparation of a zeolitic material having a FAU-type framework M structure comprising YO2 and X2O3, said process comprising: (a) preparing a mixture comprising one or more sources of YO2, one or more sources of X2O3, and one or more structure directing agents (SDA); (b) crystallizing the zeolitic material from the mixture obtained in (a); wherein Y is a tetravalent element and X is a trivalent element, and wherein the one or more structure directing agents comprise one or more isomers of diaminomethylcyclohexane as well as to a zeolitic material having an FAU-type framework structure obtainable and/or obtained according to the inventive process, to processes for preparing a coated substrate and a shaped body, respectively, from the zeolitic material having a FAU-type framework structure obtainable and/or obtained according to the inventive process, as well as to a method for selectively reducing nitrogen oxides NOx employing said zeolitic material.

## Claims

### Claim at position 1

1: A process for the preparation of a zeolitic material having a FAU-type framework structure comprising YO2 and X2O3, said process comprising:
(a) preparing a mixture comprising a source of YO2,
a source of X2O3, and a structure directing agent (SDA); and
(b) crystallizing the zeolitic material from the mixture obtained in (a);
wherein Y is a tetravalent element and X is a trivalent element, and
wherein the structure directing agent comprises an isomer of diaminomethylcyclohexane.

### Claim at position 2 (depends on 1)

2: The process of claim 1, wherein Y is at least one selected from the group consisting of Si, Sn, and Ge.

### Claim at position 3 (depends on 1)

3: The process of claim 1, wherein X is at least one selected from the group consisting of Al, B, In, and Ga.

### Claim at position 4 (depends on 1)

4: The process of claim 1, wherein the isomers of diaminomethylcyclohexane comprise 65 to 95 wt. % of 2,4-diaminomethylcyclohexane and 5 to 35 wt. % of 2,6-diaminomethylcyclohexane.

### Claim at position 5 (depends on 1)

5: The process of claim 1, wherein the mixture prepared in (a) further comprises a solvent system comprising a solvent.

### Claim at position 6 (depends on 1)

6: The process of claim 1, wherein a molar ratio YO2:diaminomethylcyclohexane of the mixture prepared in (a) is from 0.5 to 40.

### Claim at position 7 (depends on 1)

7: The process of claim 1, wherein the process further comprises one or more of the following:
(c) isolating the zeolitic material,
and/or
(d) washing the zeolitic material with a solvent;
and/or
(e) drying the zeolitic material obtained in (c), and/or (d);
and/or
(f) calcining the zeolitic material obtained in (c), (d), and/or (e).

### Claim at position 8 (depends on 7)

8: The process of claim 7, wherein the process further comprises:
(g) subjecting the zeolitic material obtained in (c), (d), (e), or (f) to an ion exchange procedure, wherein at least one ionic non-framework element or compound contained in the zeolitic material is ion-exchanged against a metal ion.

### Claim at position 9 (depends on 8)

9: The process of claim 8, wherein the metal ion is at least one selected from the group consisting of ions of alkaline earth metal elements and/or transition metal elements.

### Claim at position 10 (depends on 1)

10: A zeolitic material having a FAU-type framework structure comprising YO2 and X2O3 obtained by the process of claim 1, wherein Y is a tetravalent element and X is a trivalent element.

### Claim at position 11 (depends on 10)

11: A process for preparing a coated substrate comprising:
(1) preparing a mixture comprising a solvent system and a zeolitic material according to claim 10;
(1.a) homogenizing the mixture obtained in (1);
(1.b) providing a support substrate;
(1.c) coating the support substrate provided in (1.b) with the homogenized mixture obtained in (1.a);
(1.d) optionally drying the coated support substrate obtained in (1.c); and
(2) calcining the coated support obtained in (1.c) or (1.d).

### Claim at position 12 (depends on 11)

12: The process of claim 11, wherein the support substrate comprises at least one selected from the group consisting of ceramic substances and metallic substances.

### Claim at position 13 (depends on 10)

13: A process for preparing a shaped body comprising:
(1) preparing a mixture comprising a solvent system and a zeolitic material according to claim 10;
(1.A) adding a refractory support material, and optionally adding a pasting agent to the mixture obtained in (1);
(1.B) homogenizing the mixture obtained in (1.A);
(1.C) shaping of the mixture obtained in (1.B); and
(2′) calcining the shaped mixture obtained in (1.C).

### Claim at position 14 (depends on 10)

14: A method for selectively reducing nitrogen oxides NOx, the method comprising:
contacting a gas stream comprising NOx with a zeolitic material according to claim 10, wherein at least one ionic non-framework element or compound contained in the zeolitic material is ion-exchanged against Cu and/or Fe.

### Claim at position 15 (depends on 10)

15: A method, comprising employing a zeolitic material according to claim 10 as a molecular sieve, as an adsorbent, for ion exchange, or as a catalyst and/or catalyst support.