# US 2014/0193328 A1 · Silicoaluminophoshphate molecular sieve and method of producing same

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- Number: US 2014/0193328 A1
- Document ID: US20140193328A1
- Status: Published application
- Kind: A1
- Application number: 14/240,259
- Filed: 2012-08-20
- Published: 2014-07-10
- Earliest claimed: 2011-08-23
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Inventors: Kanji Takaoka
- Web page: https://patentgrep.com/patent/US20140193328A1

## CPC

- C01B 39/54: Phosphates, e.g. APO or SAPO compounds
- B01J 29/85: Silicoaluminophosphates [SAPO compounds]
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- C01B 37/08: Silicoaluminophosphates [SAPO compounds] {, e.g. CoSAPO}
- C01P 2004/64: Nanometer sized, i.e. from 1-100 nanometer
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## Abstract

A method of producing a silicoaluminophosphate molecular sieve includes: carrying out a hydrothermal treatment on a mixture that contains a silicon source, an aluminum source, a phosphorus source, a structure-directing agent; and at least one of an inorganic magnesium salt or an organic magnesium salt or an inorganic manganese salt or an organic manganese salt at 0.001 to 0.1 mole per mole of the aluminum source.

## Claims

### Claim 1

A silicoaluminophosphate molecular sieve being represented by the compositional formula (SiaAlbPcMd)O2
where M is magnesium, a is 0.05 to 0.17, b is 0.45 to 0.55, c is 0.33 to 0.45, d is 0.001 to 0.030, and a+b+c+d=1, and an average primary particle size is 60 nm or less.

### Claim 2 (depends on 1)

The silicoaluminophosphate molecular sieve according to claim 1, wherein the silicoaluminophosphate molecular sieve is of CHA type.

### Claim 3 (depends on 1)

The silicoaluminophosphate molecular sieve according to claim 1, wherein:
the silicoaluminophosphate molecular sieve is obtained by carrying out a hydrothermal treatment on a mixture of a silicon source, an aluminum source, a phosphorus source, a structure-directing agent, and at least one of an inorganic magnesium salt or an organic magnesium salt at 0.001 to 0.1 mole per mole of the aluminum source.

### Claim 4 (depends on 3)

The silicoaluminophosphate molecular sieve according to claim 3, wherein the structure-directing agent is a quaternary ammonium compound.

### Claim 5 (depends on 3)

The silicoaluminophosphate molecular sieve according to claim 3, wherein the silicoaluminophosphate molecular sieve is of CHA type.

### Claim 6 (depends on 3)

The silicoaluminophosphate molecular sieve according to claim 3, wherein:
the silicoaluminophosphate molecular sieve is obtained by removing magnesium.

### Claim 7

(canceled)