C07C2527/24

Method for tuning product composition based on varying types and ratios of feed

A process of tuning a hydrocarbon product composition is described. The process involves selecting paraffins for reaction. The equilibrium constants for reactions of the selected paraffins can be used to select appropriate feed ratios, or an equilibrium composition as function of C/H molar ratio. A selected feed is reacted to obtain the product. Equilibrium product compositions and non-equilibrium product compositions can be obtained using the process.

INTERMEDIATE OF PREPARING HIGH-PURITY SULFONAMIDE COMPOUND

The present invention discloses a sulfonamide compound (III) which is intermediately produced in a process for preparing a high-purity sulfonamide compound (I). The preparation comprises the following steps: a, taking a crude product of a sulfonamide compound (I) as an initial raw material, and enabling the raw material to react with a compound of a formula (II) in presence of alkali and a catalyst so as to synthesize an intermediate of a formula (III); and b, enabling the compound represented by the formula (III) to react with alkali or acid, thereby obtaining the high-purity sulfonamide compound (I).

Heterogeneous catalysts for the oxidative dehydrogenation of alkanes or oxidative coupling of methane

Improved methods of oxidative dehydrogenation (ODH) of short chain alkanes or ethylbenzene to the corresponding olefins, and improved methods of oxidative coupling of methane (OCM) to ethylene and/or ethane, are disclosed. The disclosed methods use boron- or nitride-containing catalysts, and result in improved selectivity and/or byproduct profiles than methods using conventional ODH or OCM catalysts.

Method for preparing high-purity sulfonamide compound, and intermediate of sulfonamide compound

The present invention discloses a method for preparing a high-purity sulfonamide compound and an intermediate of the sulfonamide compound. The method comprises the following steps: a, taking a crude product of a sulfonamide compound (I) as an initial raw material, and enabling the raw material to react with a compound of a formula (II) in presence of alkali and a catalyst so as to synthesize an intermediate of a formula (III); and b, enabling the compound represented by the formula (III) to react with alkali or acid, thereby obtaining the high-purity sulfonamide compound (I).

BORON NITRIDE CONTAINING VACANT SITE DEFECTS FOR USE IN CATALYTIC HYDROGENATION
20240367974 · 2024-11-07 ·

A composition comprising a boron nitride hexagonal lattice structure in which boron atoms and nitrogen atoms are present in a B:N molar ratio of 1:4-1:8 or 4:1-8:1, wherein the molar ratio corresponds to vacant site defects within the boron nitride hexagonal lattice structure. Also described are methods for producing the boron nitride composition as well as methods for using the boron nitride composition as a catalyst in a hydrogenation process.

HETEROGENEOUS METAL-FREE CATALYST
20180022679 · 2018-01-25 ·

The inventive concepts disclosed and/or claimed herein relate generally to catalysts and, more particularly, but not by way of limitation, to a heterogeneous, metal-free hydrogenation catalyst containing frustrated Lewis pairs. In one non-limiting embodiment, the heterogeneous, metal-free catalyst comprises hexagonal boron nitride (h-BN) having frustrated Lewis pairs therein.

HETEROATOM-CONTAINING NANOCARBON MATERIAL, PREPARATION METHOD AND USE THEREOF, AND METHOD FOR DEHYDROGENATION REACTION OF HYDROCARBONS

A heteroatom-containing nano-carbon material, based on the total weight of said heteroatom-containing nano-carbon material and calculated as the elements, has an oxygen content of 1-6 wt %, a nitrogen content of 0-2 wt %, a carbon content of 92-99 wt %. In its XPS, the ratio of the oxygen content as determined with the peak(s) in the range of 531.0-532.5 eV to the oxygen content as determined with the peak(s) in the range of 532.6-533.5 eV is 0.2-0.8; the ratio of the carbon content as determined with the peak(s) in the range of 288.6-288.8 eV to the carbon content as determined with the peak(s) in the range of 286.0-286.2 eV is 0.2-1; the ratio of the nitrogen content as determined with the peak(s) in the range of 398.5-400.1 eV to the total nitrogen content is 0.7-1. The heteroatom-containing nano-carbon material shows a good catalytic capability in dehydrogenation of hydrocarbons.

Process for functionalizing biomass using molybdenum catalysts

The present invention concerns a process for converting biomass into useful organic building blocks for the chemical industry. The process involves the use of molybdenum catalysts of the formula A.sup.a+a(Mo.sub.vX.sub.xR.sup.1.sub.yR.sup.2.sub.zR.sup.3e).sup.a*3, which may be readily prepared from industrial molybdenum compounds.

HETEROGENEOUS CATALYSTS FOR THE OXIDATIVE DEHYDROGENATION OF ALKANES OR OXIDATIVE COUPLING OF METHANE

Improved methods of oxidative dehydrogenation (ODH) of short chain alkanes or ethylbenzene to the corresponding olefins, and improved methods of oxidative coupling of methane (OCM) to ethylene and/or ethane, are disclosed. The disclosed methods use boron- or nitride-containing catalysts, and result in improved selectivity and/or byproduct profiles than methods using conventional ODH or OCM catalysts.

METHOD AND CATALYST FOR METHANE CONVERSION TO CYCLOHEXANE
20250128242 · 2025-04-24 ·

There is provided a catalyst for the conversion of methane to cyclohexane. The catalyst comprises gallium nitride, zinc oxide, gallium oxide or a combination thereof; and platinum clusters deposited at the surface of the gallium nitride, the zinc oxide, the gallium oxide or the combination thereof. The platinum clusters collectively represent from about 0.75 to about 4% by weight of the catalyst.