The purpose of the present invention is to provide a beta zeolite which includes zinc and has a small particle size. This beta zeolite includes a silicon oxide and a zinc oxide, and has an average particle size of 50 to 100 nm at a cumulative frequency of 50% in a particle size distribution measured by scanning electron microscope observation.

The disclosure is related to EMM-31 materials, processes, and uses of the same as well as reagents used in the preparation of the EMM-31 materials, process and intermediates for preparing these reagents.

The disclosure is related to EMM-31 materials, processes, and uses of the same as well as reagents used in the preparation of the EMM-31 materials, process and intermediates for preparing these reagents.

The present invention relates to a new process for synthesising a crystalline material comprising structure Beta zeolite in nanocrystalline form, and which can comprise at least the following steps: (i) preparing a mixture comprising at least one source of water, at least one source of a tetravalent element Y, at least one source of a trivalent element X, at least one source of an alkali cation or alkaline earth metal cation (A), and at least one organic molecule selected from a monocyclic quaternary ammonium R.sub.1R.sub.2CycloN.sup.+, and a quaternary ammonium substituted with a cycloalkyl group R.sub.3R.sub.4R.sub.5R.sub.6N.sup.+. The molar composition of the mixture is: n X.sub.2O.sub.3:YO.sub.2:a A:m OSDA1:z H.sub.2O; ii) crystallising the mixture; and iii) recovering the crystalline material.

The invention relates to a molecular sieve SCM-15, a preparation process and use thereof. The molecular sieve comprises a schematic chemical composition of a formula of SiO.sub.2.GeO.sub.2, wherein the molar ratio of silicon and germanium satisfies SiO.sub.2/GeO.sub.21. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.

The invention relates to a molecular sieve SCM-15, a preparation process and use thereof. The molecular sieve comprises a schematic chemical composition of a formula of SiO.sub.2.GeO.sub.2, wherein the molar ratio of silicon and germanium satisfies SiO.sub.2/GeO.sub.21. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.

The invention relates to a molecular sieve SCM-14, a preparation process and use thereof. The molecular sieve has a schematic chemical composition of a formula of SiO.sub.2.1/nGeO.sub.2 or a formula of kF.mQ.SiO.sub.2.1/nGeO.sub.2.pH.sub.2O, wherein the molar ratio of silicon to germanium, n, satisfies n30, and other values and symbols are defined in the specification. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.

The invention relates to a molecular sieve SCM-14, a preparation process and use thereof. The molecular sieve has a schematic chemical composition of a formula of SiO.sub.2.1/nGeO.sub.2 or a formula of kF.mQ.SiO.sub.2.1/nGeO.sub.2.pH.sub.2O, wherein the molar ratio of silicon to germanium, n, satisfies n30, and other values and symbols are defined in the specification. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.

A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-56 using benzyltributylammonium cations as a structure directing agent.

A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-56 using benzyltributylammonium cations as a structure directing agent.