Processes for preparing zincoaluminosilicates with aei, cha, and gme topologies and compositions derived therefrom
AssigneeCalifornia Institute of Technology
InventorsMICHIEL J. DUSSELIER, MARK E. DAVIS
Life of this patent
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Abstract
The present disclosure is directed to methods of producing zincoaluminosilicate structures with AEI, CHA, and GME topologies using organic structure directing agents (OSDAs), and the compositions and structures resulting from these methods.
Claims45
A process for preparing a zincoaluminosilicate composition, the process comprising hydrothermally treating an aqueous composition comprising:
- (a) a source of a silicon oxide, and optionally a source of germanium oxide or combination thereof;
- (b) a source of aluminum oxide, and optionally a source of boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof;
- and
- (c) a source of a zinc oxide;
- (d) a mineralizing agent;
- and
- (e) an organic structure directing agent (OSDA) comprising at least one isomer of the quaternary piperidinium cation of Formula (I):
- under conditions effective to crystallize a crystalline microporous zincoaluminosilicate solid of AEI or GME topology;
- wherein
- RA and RB are independently a C1-3 alkyl, or together with the N to which they are bound form a 5 or 6 membered saturated or unsaturated ring;
- and
- R2, R3, R4, R5, and R6 are independently H or C1-3 alkyl, provided at least two of R2, R3, R4, R5, and R6 are independently C1-3 alkyl;
- wherein
- the quaternary piperidinium cation has an associated bromide, chloride, fluoride, iodide, nitrate, or hydroxide anion.
A process for preparing a zincoaluminosilicate composition of CHA topology, the process comprising hydrothermally treating an aqueous composition comprising:
- (a) a source of a silicon oxide, and optionally a source of germanium oxide or combination thereof;
- (b) a source of aluminum oxide, and optionally a source of boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof;
- and
- (c) a source of a zinc oxide;
- (d) a mineralizing agent;
- and
- (e) an organic structure directing agent (OSDA) comprising a trialkyladamantylammonium cation of Formula (II) or an optionally substituted trialkylbenzylammonium cation of Formula (III):
- under conditions effective to crystallize a crystalline microporous zincoaluminosilicate solid of CHA topology;
- wherein:
- R7, R8, and R9 are independently C1-6 alkyl or C1-3 alkyl;
- and wherein the quaternary trialkyladamantyl- or trialkylbenzyl-ammonium cation has an associated bromide, chloride, fluoride, iodide, nitrate, or hydroxide anion, and wherein
- the phenyl group of the trialkylbenzylammonium cation is optionally substituted with one to three fluoro or optionally fluorinated or perfluorinated C1-3 alkyl groups.
A composition comprising:
- (a) a source of a silicon oxide, and optionally a source of germanium oxide, or combination thereof;
- (b) a source of aluminum oxide, and optionally a source of boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof;
- and
- (c) a source zinc oxide;
- (d) a mineralizing agent;
- (e) an organic structure directing agent (OSDA) comprising at least one isomer of the quaternary piperidinium cation of Formula (I):
- and
- (f) a compositionally consistent crystalline microporous zincoaluminosilicate solid of an AEI or GME topology;
- wherein
- RA and RB are independently a C1-3 alkyl, or together with the N to which they are bound form a 5 or 6 membered saturated or unsaturated ring;
- and
- R2, R3, R4, R5, and R6 are independently H or C1-3 alkyl, provided at least two of R2, R3, R4, R5, and R6 are independently C1-3 alkyl;
- and wherein
- the quaternary piperidinium cation has an associated bromide, chloride, fluoride, iodide, nitrate, or hydroxide anion.
A composition comprising:
- (a) a source of a silicon oxide, and optionally a source of germanium oxide or combination thereof;
- (b) a source of aluminum oxide, and optionally a source of boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof;
- and
- (c) a source of a zinc oxide;
- (d) a mineralizing agent;
- (e) an organic structure directing agent (OSDA) comprising a trialkyladamantylammonium cation of Formula (II) or an optionally substituted trialkylbenzylammonium cation of Formula (III):
- and
- (f) a compositionally consistent crystalline microporous zincoaluminosilicate solid of a CHA topology wherein:
- R7, R8, and R9 are independently C1-6 alkyl or C1-3 alkyl;
- and wherein the quaternary trialkyladamantyl- or trialkylbenzyl-ammonium cation has an associated bromide, chloride, fluoride, iodide, nitrate, or hydroxide anion.
A crystalline microporous zincoaluminosilicate solid of GME or AEI topology having pores at least some of which are occluded with quaternary piperidinium cations of Formula (I):
- wherein
- RA and RB are independently a C1-3 alkyl, or together with the N to which they are bound form a 5 or 6 membered saturated or unsaturated ring;
- and
- R2, R3, R4, R5, and R6 are independently H or C1-3 alkyl, provided at least two of R2, R3, R4, R5, and R6 are independently C1-3 alkyl.
A crystalline microporous zincoaluminosilicate solid of AEI or GME topology, wherein the OSDA comprises at least one isomer of the quaternary piperidinium cation of Formula (IA) or (TB):
- wherein R2 R3, R5, and R6 are independently C1-3 alkyl.
A crystalline microporous zincoaluminosilicate solid of CHA topology having pores at least some of which are occluded with a trialkyladamantylammonium cation of Formula (II) or an optionally substituted trialkylbenzylammonium cation of Formula (III):
- wherein:
- R7, R8, and R9 are independently C1-6 alkyl or C1-3 alkyl;
- wherein the quaternary trialkyladamantyl- or trialkylbenzyl-ammonium cation has an associated bromide, chloride, fluoride, iodide, nitrate or hydroxide anion;
- and wherein the phenyl group of the trialkylbenzylammonium cation is optionally substituted with one to three fluoro or optionally fluorinated or perfluorinated C1-3 alkyl groups.
A crystalline microporous zincoaluminosilicate solid having an AEI, CHA, or GME topology.
Dependencies are inferred from the claim text.