Patent classifications
C01B39/04
Hierarchical zeolites and preparation method therefor
The present invention relates to a method for preparing hierarchical zeolites, including the steps of preparing a first mixture solution including a structure-directing agent, an alumina precursor and a pH controller; preparing a second mixture solution by injecting a silica precursor into the first mixture solution; preparing an aqueous solution including a surfactant; preparing a third mixture solution by injecting the aqueous solution into the second mixture solution; and drying and heat-treating the third mixture solution. According to the present invention, hierarchical zeolites having a uniform morphology can be prepared, and thus hierarchical zeolites having improved activity are provided.
HYDROPHOBIC ZEOLITE, METHOD FOR PRODUCING SAME AND USE OF SAME
A hydrophobic zeolite which has a water adsorption of (6 g/100 g zeolite) or less at 25° C. at RH 60% and a toluene adsorption of (9 g/100 g zeolite) or more at 25° C. under 0.01 kPa.
HYDROPHOBIC ZEOLITE, METHOD FOR PRODUCING SAME AND USE OF SAME
A hydrophobic zeolite which has a water adsorption of (6 g/100 g zeolite) or less at 25° C. at RH 60% and a toluene adsorption of (9 g/100 g zeolite) or more at 25° C. under 0.01 kPa.
NOVEL ZEOLITE SYNTHESIS WITH ALKALINE EARTH METAL
Provided are a novel form of AFX zeolite, a novel synthesis technique for producing pure phase small pore zeolites, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same.
NOVEL ZEOLITE SYNTHESIS WITH ALKALINE EARTH METAL
Provided are a novel form of AFX zeolite, a novel synthesis technique for producing pure phase small pore zeolites, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same.
IRON-LOADED SMALL PORE ALUMINOSILICATE ZEOLITES AND METHOD OF MAKING METAL LOADED SMALL PORE ALUMINOSILICATE ZEOLITES
The present invention further provides a method of making an metal-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms from pre-existing aluminosilicate zeolite crystallites, wherein the metal is present in a range of from 0.5 to 5.0 wt. % based on the total weight of the metal-loaded aluminosilicate zeolite.
IRON-LOADED SMALL PORE ALUMINOSILICATE ZEOLITES AND METHOD OF MAKING METAL LOADED SMALL PORE ALUMINOSILICATE ZEOLITES
The present invention further provides a method of making an metal-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms from pre-existing aluminosilicate zeolite crystallites, wherein the metal is present in a range of from 0.5 to 5.0 wt. % based on the total weight of the metal-loaded aluminosilicate zeolite.
Delaminated layered zeolite precursors and method of preparing same without sonication
Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.
Delaminated layered zeolite precursors and method of preparing same without sonication
Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.
JMZ-1S, a CHA-containing molecular sieve and methods of preparation
JMZ-1S, a silicoaluminophosphate molecular sieve having a CHA structure and containing a trimethyl(cyclohexylmethyl)ammonium cation cation is described. A calcined product, JMZ-1SC, formed from JMZ-1S is also described. Methods of preparing JMZ-1S, JMZ-1SC and metal containing calcined counterparts of JMZ-1SC are described along with methods of using JMZ-1SC and metal containing calcined counterparts of JMZ-1SC in treating exhaust gases and in converting methanol to olefines.