A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C.sub.1-C.sub.10 hydrohalocarbons.

A process for the fluorination of a chlorinated C3 alkane or alkene compound having at least one chlorine atom into a fluorinated C3 alkane or alkene compound having at least one fluorine atom includes the following steps: a) contacting, in a reactor, the chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and b) regenerating the fluorination catalyst used in step a). The step (b) of regenerating the fluorination catalyst comprises (c) the treatment of said fluorination catalyst with an oxidizing agent-containing gas flow to form an oxidized fluorination catalyst, and (d) the treatment of the oxidized fluorination catalyst obtained in step (c) with a gaseous mixture comprising a reducing agent and an inert gas. The catalyst regenerated in step b) is reused in step a) and the reducing agent is selected from C.sub.1-C.sub.10 hydrohalocarbons.

The present invention relates to a composition comprising a) a molding comprising a zeolitic material having an AEI-type framework structure, wherein the zeolitic material has a framework structure comprising Si, a trivalent element X, and oxygen, wherein the zeolitic material further comprises one or more alkali metals AM and/or one or more alkaline earth metals AEM; and b) a mixed metal oxide comprising chromium, zinc, and aluminum; and to a process for its production, as well as to the molding and the mixed metal oxide as such, respectively, as obtainable or obtained according to the inventive production process, as well as to the composition as obtainable or obtained according to the inventive production process. In addition to these, the present invention further relates to the use of the inventive composition as a catalyst or as a catalyst component, as well as to a process for preparing C2 to C4 olefins from a synthesis gas comprising hydrogen and carbon monoxide.

The present invention relates to a composition comprising a) a molding comprising a zeolitic material having an AEI-type framework structure, wherein the zeolitic material has a framework structure comprising Si, a trivalent element X, and oxygen, wherein the zeolitic material further comprises one or more alkali metals AM and/or one or more alkaline earth metals AEM; and b) a mixed metal oxide comprising chromium, zinc, and aluminum; and to a process for its production, as well as to the molding and the mixed metal oxide as such, respectively, as obtainable or obtained according to the inventive production process, as well as to the composition as obtainable or obtained according to the inventive production process. In addition to these, the present invention further relates to the use of the inventive composition as a catalyst or as a catalyst component, as well as to a process for preparing C2 to C4 olefins from a synthesis gas comprising hydrogen and carbon monoxide.

Provided is a method of preparing an intermetallic catalyst which includes applying ultrasonic wave to a precursor mixture solution including a noble metal precursor, a transition metal precursor, and a carbon support having an average pore size of about 6 nm to about 15 nm and a specific surface area of about 200 m.sup.2/g to about 2000 m.sup.2/g to form alloy particles in pores of the carbon support, and annealing the alloy particles in the pores of the carbon support to form intermetallic alloy particles.

Disclosed are a catalyst for oxidative dehydrogenation and a method of preparing the same. More particularly, a catalyst for oxidative dehydrogenation of butene having a high butene conversion rate and superior side reaction inhibition effect and thus having high reactivity and high selectivity for a product by preparing metal oxide nanoparticles and then fixing the prepared metal oxide nanoparticles to a support, and a method of preparing the same are provided.

Disclosed are a catalyst for oxidative dehydrogenation and a method of preparing the same. More particularly, a catalyst for oxidative dehydrogenation of butene having a high butene conversion rate and superior side reaction inhibition effect and thus having high reactivity and high selectivity for a product by preparing metal oxide nanoparticles and then fixing the prepared metal oxide nanoparticles to a support, and a method of preparing the same are provided.

A catalyst for preparing light olefin using direct conversion of syngas is a composite catalyst and formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of component I is a metal oxide; and the component II is one or more than one of zeolite of CHA and AEI structures or metal modified CHA and/or AEI zeolite. A weight ratio of the active ingredients in the component Ito the component II is 0.1-20. The reaction process has high product yield and selectivity, wherein the sum of the selectivity of the propylene and butylene reaches 40-75%; and the sum of the selectivity of light olefin comprising ethylene, propylene and butylene can reach 50-90%. Meanwhile, the selectivity of a methane side product is less than 15%.

A catalyst for preparing light olefin using direct conversion of syngas is a composite catalyst and formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of component I is a metal oxide; and the component II is one or more than one of zeolite of CHA and AEI structures or metal modified CHA and/or AEI zeolite. A weight ratio of the active ingredients in the component Ito the component II is 0.1-20. The reaction process has high product yield and selectivity, wherein the sum of the selectivity of the propylene and butylene reaches 40-75%; and the sum of the selectivity of light olefin comprising ethylene, propylene and butylene can reach 50-90%. Meanwhile, the selectivity of a methane side product is less than 15%.

A catalyst for preparing chlorine gas by hydrogen chloride oxidation, comprising the following components calculated according to mass content based on the total weight of the catalyst: 0.5-20 wt % copper; 2-10 wt % manganese; 0.05-2 wt % boron; 0.01-3 wt % chromium; 0.1-10 wt % rare earth metal; 0.1-10 wt % potassium; and 3-15 wt % titanium; also comprising 0.02-1.1 wt % phosphorus; and 0.03-1.9 wt % iron; the carrier content is 55-90 wt %. In the case of a fluidized bed reactor, the present catalyst can achieve a one-way hydrogen chloride conversion rate of 80-85%. Almost all of the 0-1000 mg/kg of chlorinated benzene contained in hydrogen chloride gas can be converted into CO.sub.2 and H.sub.2O without generating polychlorinated benzene.