C01B39/06

PHYLLOSILICATE COMPOSITIONS DESIGNATED CIT-13P AND METHODS OF PREPARING THE SAME
20210154649 · 2021-05-27 ·

The present disclosure is directed to novel phyllosilicate compositions designated CIT-13P and methods of producing and using the same.

Method for producing sheets of graphene

The invention relates to a method for obtaining sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or mixtures thereof from the powder of said materials. Said sheets consist of a set of strips, wherein said strips consist of between one and five layers. Said layers are layers of graphene, hexagonal boron nitride, molybdenum disulfide or tungsten disulfide having a monoatomic or monomolecular thickness. The invention also relates to a method for coating a surface with sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or sheets of mixtures thereof.

Method for producing sheets of graphene

The invention relates to a method for obtaining sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or mixtures thereof from the powder of said materials. Said sheets consist of a set of strips, wherein said strips consist of between one and five layers. Said layers are layers of graphene, hexagonal boron nitride, molybdenum disulfide or tungsten disulfide having a monoatomic or monomolecular thickness. The invention also relates to a method for coating a surface with sheets of graphene, hexagonal boron nitride, molybdenum disulfide, tungsten disulfide or sheets of mixtures thereof.

GERMANOSILICATE COMPOSITIONS OF CIT-5 TOPOLOGY AND METHODS OF PREPARING THE SAME
20210129119 · 2021-05-06 ·

The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. Included among the new materials are the new germanosilicates of CIT-5 topology having Si:Ge ratios either in a range of from 3.8 to 5.4 or from 30 to 200, with and without added metal oxides. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.

GERMANOSILICATE COMPOSITIONS OF CIT-5 TOPOLOGY AND METHODS OF PREPARING THE SAME
20210129119 · 2021-05-06 ·

The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. Included among the new materials are the new germanosilicates of CIT-5 topology having Si:Ge ratios either in a range of from 3.8 to 5.4 or from 30 to 200, with and without added metal oxides. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.

GERMANOSILICATE COMPOSITIONS OF CIT-14 TOPOLOGY AND METHODS OF PREPARING AND USING THE SAME

The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. In particular, this disclosure describes new germanosilicates of CIT-14 topology. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.

GERMANOSILICATE COMPOSITIONS OF CIT-14 TOPOLOGY AND METHODS OF PREPARING AND USING THE SAME

The present disclosure is directed to novel germanosilicate compositions and methods of producing and using the same. In particular, this disclosure describes new germanosilicates of CIT-14 topology. The disclosure also describes methods of preparing and using these new germanosilicate compositions as well as the compositions themselves.

Process for the preparation of a titanium-containing zeolite

A process comprising hydrothermally synthesizing a titanium-containing zeolitic material having framework type MWW in the presence of an MWW template compound, obtaining a mother liquor comprising water, a first portion of the MWW template compound and a titanium-containing zeolitic material having framework type MWW comprising a second portion of the MWW template compound, separating the first portion of the MWW template compound from the mother liquor and recycling the first portion of the MWW template compound into a hydrothermal synthesis of a titanium-containing zeolitic material having framework type MWW.

PROCESS FOR PREPARING AN IZM-2 ZEOLITE IN THE PRESENCE OF A NITROGENOUS ORGANIC STRUCTURING AGENT IN HYDROXIDE FORM AND OF AN ALKALI METAL CHLORIDE, IN FLUORINATED OR NON-FLUORINATED MEDIUM

The invention relates to a process for preparing an IZM-2 zeolite, comprising at least: i) mixing, in aqueous medium, of at least one source of at least one tetravalent element X (XO.sub.2), at least one source of at least one trivalent element (Y.sub.2O.sub.3), 1,6-bis(methylpiperidinium)hexane dihydroxide, at least one source of at least one alkali metal M of valency n chosen from alkali metal chlorides, n being an integer greater than or equal to 1, M being chosen from lithium, potassium, sodium and caesium, and the mixture of at least two of these metals, and optionally in the presence of a source of at least one fluoride anion, BF, the mixture having a specific molar composition to obtain a homogeneous precursor gel; ii) hydrothermal treatment of said precursor gel.

PROCESS FOR PREPARING AN IZM-2 ZEOLITE IN THE PRESENCE OF A MIXTURE OF NITROGENOUS ORGANIC STRUCTURING AGENTS IN HYDROXIDE FORM AND OF BROMIDE AND OF AN ALKALI METAL CHLORIDE

The invention relates to a process for preparing a synthetic IZM-2 zeolite, which consists in performing a hydrothermal treatment of an aqueous gel containing a source of silicon and a source of amorphous aluminium, two nitrogenous or structuring organic compounds including two quaternary ammonium functions, 1,6-bis(methylpiperidinium)hexane dihydroxide and 1,6-bis(methylpiperidinium)hexane dibromide, used as a mixture, in combination with a source of a specific alkali metal chloride M (preferably NaCl), the aqueous gel not comprising any source of at least one fluoride anion.