Back to results
US 2003/0232006 A1Published application
Synthesis of silicoaluminophosphates
AssigneeExxonMobil Chemical Patents Inc.
InventorsGuang Cao, Matu J. Shah
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeExxonMobil Chemical Patents Inc.
InventorsGuang Cao, Matu J. Shah
Estimating the term…
The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety, selected from one or more of N,N-dimethylethanolamine, N,N-dimethylpropanolamine, N,N-dimethylbutanolamine, N,N-dimethylheptanolamine, N,N-dimethylhexanolamine, N,N-dimethylethylenediamine, N,N-dimethylbutylenediamine, N,N-dimethylheptylenediamine, N,N-dimethylhexylenediamine 1-dimethylamino-2-propanol, N,N-dimethylethylamine, N,N-dimethylpropylamine, N,N-dimethylpentylamine, N,N-dimethylhexylamine and N,N-dimethylheptylamine. The use of dimethylamino moiety containing templates results in good quality SAPO molecular sieves of CHA framework type.
A process for preparing a crystalline silicoaluminophosphate molecular sieve of CHA framework type, the process comprising:
A silicoaluminophosphate molecular sieve, substantially of CHA framework type, comprising within its intra-crystalline structure at least one template which contains one or more N,N-dimethylamino moieties.
A silicoaluminophosphate molecular sieve, substantially of CHA framework type, comprising N,N-dimethylethanolamine within its intra-crystalline structure.
A crystalline silicoaluminophosphate molecular sieve having a characteristic X-ray powder diffraction pattern containing at least the d-spacings as set forth in Table Ia.
A silicoaluminophosphate molecular sieve, substantially of CHA framework type, comprising N,N-dimethylpropanolamine within its intra-crystalline structure.
A crystalline silicoaluminophosphate molecular sieve having a characteristic X-ray powder diffraction pattern containing at least the d-spacings as set forth in Table Ia.
A silicoaluminophosphate molecular sieve, substantially of CHA framework type, comprising 1-dimethylamino-2-propanol within its intra-crystalline structure.
A crystalline silicoaluminophosphate molecular sieve having a characteristic X-ray powder diffraction pattern containing at least the d-spacings as set forth in Table IIIa.
Dependencies are inferred from the claim text.