# US 6,720,171 B2 · Combinatorial preparation and testing of heterogeneous catalysts

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- Number: US 6,720,171 B2
- Document ID: US6720171B2
- Status: Granted
- Kind: B2
- Application number: 09/734,018
- Filed: 2000-12-12
- Published: 2001-11-08
- Granted: 2004-04-13
- Earliest claimed: 1999-12-13
- Assignees: BASF SE
- Inventors: Stephan Andreas Schunk; Dirk Demuth; Hartmut Hibst
- Web page: https://patentgrep.com/patent/US6720171B2

## CPC

- B01J 37/02: Impregnation, coating or precipitation ({B01J37/0009 and B01J37/0018 take precedence } ; protection by coating B01J33/00)
- B01J 19/0046: {Sequential or parallel reactions, e.g. for the synthesis of polypeptides or polynucleotides; Apparatus and devices for combinatorial chemistry or for making molecular arrays (synthesis methods per se C40B50/00)}
- B01J 35/56: Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths
- B01J 2219/0052: in the shape of elongated tubes
- B01J 2219/00585: Parallel processes
- B01J 2219/00603: Making arrays on substantially continuous surfaces
- B01J 2219/00659: Two-dimensional arrays
- B01J 2219/00704: integrated with the reactor apparatus
- B01J 2219/00745: Inorganic compounds
- B01J 2219/00747: Catalysts
- C40B 30/08: by measuring catalytic activity
- C40B 40/18: Libraries containing only inorganic compounds or inorganic materials
- Y10T 436/175383: Ammonia
- Y10T 436/18: Sulfur containing
- Y10T 436/20: Oxygen containing
- Y10T 436/205831: Carbon monoxide only
- Y10T 436/25875: Gaseous sample or with change of physical state
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C40B: COMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES (in silico combinatorial libraries of nucleic acids, proteins or peptides G16B35/00; in silico combinatorial chemistry G16C20/60)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A process for preparing arrays of two or more heterogeneous catalysts, heterogeneous catalyst precursors, or combinations thereof in a body having preferably parallel through-channels. In this process, a solution, emulsion or dispersion of elements present in the catalyst, catalyst precursor, or combination thereof, is first prepared, and is used to simultaneously or successively coat the channels of the body to produce freshly impregnated moist channels. These channels are then treated and reacted with one or more reactive gases, and the coated body is optionally heated in the presence or absence of inert or reactive gases.

## Claims

### Claim 1

A process for preparing arrays of heterogeneous catalysts, heterogeneous catalyst precursors, or combinations thereof, comprising a body having through-channels and in which at least n through-channels comprise n different heterogeneous catalysts, heterogeneous catalyst precursors, or combinations thereof, where n is at least one 2, comprising the following steps:
a1) preparing solutions, emulsions or dispersions of elements or element compounds of the chemical elements present in the catalysts, catalyst precursors, or combinations thereof and, optionally, preparing dispersions of inorganic support materials,
a2) optionally, introducing adhesion promoters, binders, viscosity regulators, pH regulators or solid inorganic supports into the solutions, emulsions or dispersions,
a3) simultaneously or successively coating the channels of the body with the solutions, emulsions or dispersions, a predetermined amount of the solutions, emulsions or dispersions being introduced into each channel to obtain a predetermined composition, to produce freshly impregnated moist channels,
a4) treating and reacting the freshly impregnated moist channels obtained after the coating with at least one reactive gases selected from the group consisting of ammonia, hydrogen sulfide, prussic acid and carbon monoxide to precipitate salt solution of the chemical elements, and
a5) optionally, heating the coated body in the presence or absence of inert gases or reactive gases to a temperature in the range from 20 to 1500° C. to dry, optionally with sintering or calcining, the catalysts, catalyst precursors, or combinations thereof.

### Claim 2 (depends on 1)

The process as claimed in claim 1, wherein n is at least 10.

### Claim 3 (depends on 2)

The process as claimed in claim 2, wherein n is at least 100.

### Claim 4 (depends on 1)

The process as claimed in claim 1, wherein the through-channels are parallel relative to each other.