Patent classifications
B01J29/047
Silicon-and germanium-based SCM-25 molecular sieve, preparation process and use thereof
A silicon-and germanium-based molecular sieve has a framework chemical composition as represented by the formula SiO2.1/nGeO2. The silicon/germanium molar ratio is 0.1n
30. The molecular sieve has a unique X-ray diffraction pattern. It can be used in adsorptive separation, ion exchange, and catalytic conversion of organic compounds.
ITQ-49 material, method for the production thereof and use of same
The present invention refers to a microporous crystalline material, to the method for the production thereof and to the use of same, the material having a composition:
xX.sub.2O.sub.3:zZO.sub.2:yYO.sub.2
in which: X is a trivalent element such as Al, B, Fe, In, Ga, Cr, or mixtures thereof, where (y+z)/x can have values of between 9 and infinity; Z corresponds to a tetravalent element selected from Si, Ge or mixtures thereof; and Y corresponds to a tetravalent element such as Ti, Sn, Zr, V or mixtures thereof, where z/y can have values of between 10 and infinity.
Catalyst with improved activity/selectivity for light naphtha aromatization
In an embodiment, A catalyst comprises a zeolite comprising Si, Al, and Ge in the framework with Pt deposited thereon; wherein the catalyst has an Si:Al.sub.2 mole ratio of greater than or equal to 125, an Si:Ge mole ratio of 40 to 400, and an Na:Al mole ratio of 0.9 to 2.5; wherein the catalyst has an aluminum content of less than or equal to 0.75 wt %; wherein the catalyst is non-acidic.
SCM-10 molecular sieve, process for producing same and use thereof
The present invention relates to an SCM-10 molecular sieve, a process for producing same and use thereof. The molecular sieve has an empirical chemical composition as illustrated by the formula the first oxide.Math.the second oxide, wherein the ratio by molar of the first oxide to the second oxide is less than 40, the first oxide is at least one selected from the group consisting of silica and germanium dioxide, the second oxide is at least one selected from the group consisting of alumina, boron oxide, iron oxide, gallium oxide, titanium oxide, rare earth oxides, indium oxide and vanadium oxide. The molecular sieve has specific XRD pattern and can be used as an adsorbent or a catalyst for converting an organic compound.
MOLECULAR SIEVE SSZ-113, ITS SYNTHESIS AND USE
A novel synthetic crystalline molecular sieve material, designated SSZ-113, can be synthesized using 1,3-bis(2,3-dimethyl-1H-imidazolium)propane dications as a structure directing agent. SSZ-113 may be used in organic compound conversion and/or sorptive processes.
Molecular sieve SSZ-113, its synthesis and use
A novel synthetic crystalline molecular sieve material, designated SSZ-113, can be synthesized using 1,3-bis(2,3-dimethyl-1H-imidazolium)propane dications as a structure directing agent. SSZ-113 may be used in organic compound conversion and/or sorptive processes.
MOLECULAR SIEVE SSZ-124, ITS SYNTHESIS AND USE
This disclosure relates to an aluminogermanosilicate molecular sieve, designated as SSZ-124, methods for making the same, and uses thereof.
Crystalline Germanosilicate Materials Of New CIT-13 Topology And Methods Of Preparing The Same
The present disclosure is directed to novel crystalline germanosilicate compositions and methods of producing the same. In particular, the crystalline germanosilicate compositions are extra-large-pore compositions, designated CIT-13 possessing 10- and 14-membered rings. The disclosure describes methods of preparing these compositions using substituted benzyl-imidazolium organic structure-directing agents (OSDAs). Also disclosed are methods of using these crystalline compositions.
GERMANIUM-68 SOURCE MATERIAL AND CALIBRATION DEVICES THAT INCLUDE SUCH SOURCE MATERIAL
Calibration devices including germanium-68 source material are disclosed. The source material may be a matrix material (e.g., zeolite) in which germanium-68 is isomorphously substituted for central atoms in tetrahedra within the matrix material. Methods for preparing such calibration devices are also disclosed.
MOLECULAR SIEVE, ITS PREPARATION AND APPLICATION THEREOF
The present invention relates to a molecular sieve, particularly to an ultra-macroporous molecular sieve. The present invention also relates to a process for the preparation of the molecular sieve and to its application as an adsorbent, a catalyst, or the like. The molecular sieve has a unique X-ray diffraction pattern and a unique crystal particle morphology. The molecular sieve can be produced by using a compound represented by the following formula (I),
##STR00001## wherein the definition of each group and value is the same as that provided in the specification, as an organic template. The molecular sieve is capable of adsorbing more/larger molecules, thereby exhibiting excellent adsorptive/catalytic properties.