摘要:
Disclosed is a catalyst and process for producing ammonia (NH3). The process includes contacting a gaseous feed mixture comprising nitrogen (N2) and hydrogen (H2) with a metal hydride material under reaction conditions sufficient to produce a product stream comprising NH3.
摘要:
A process for preparing trifluorochloroethylene including: in a multi-tubular reactor, hydrogenation reacting 1,1,2-trifluoro-1,2,2-trichloroethane directly with a catalyst potassium zinc trihydride to obtain trifluorochloroethylene, wherein the catalytic reaction is performed at a temperature of 250-350° C. and a pressure of 0.7-1.0 MPa for 10-20 seconds. The conventional process in which zinc powder is used for dechlorination or hydrogen is used for dechlorination through hydrogenation with the action of a noble metal catalyst is avoided in the process disclosed herein. The present process substantially reduces the production cost of trifluorochloroethylene, and substantially increases the product yield, which can be up to 99% or more.
摘要:
The present invention relates to a process for manufacturing neohexene, comprising contacting isobutene with a supported catalyst comprising a tungsten compound chosen from tungsten hydrides, organometallic tungsten compounds and organometallic tungsten hydrides, and a support comprising an oxide of aluminum, so as to form a reaction mixture comprising neohexene, and preferably separating neohexene from the reaction mixture, so as to isolate it. The contacting leads to the direct production of neohexene, in particular in a single (reaction) stage and with a high molar selectivity for neohexene. The contacting can be performed at a temperature of 50 to 600 ° C., under a total absolute pressure of 0.01 to 100 MPa.
摘要:
Disclosed herein is a composition comprising a complex hydride and a borohydride catalyst wherein the borohydride catalyst comprises a BH4 group, and a group IV metal, a group V metal, or a combination of a group IV and a group V metal. Also disclosed herein are methods of making the composition.
摘要:
The present invention provides a method for oxidizing a hydrocarbon, an alcohol or an aldehyde, which comprises: oxidizing a hydrocarbon, an alcohol or an aldehyde to an alcohol, an aldehyde, a carboxylic acid or a carboxylate ester corresponding thereto, in a liquid phase having: a region in which oxygen is substantially present; and a region in which oxygen is substantially absent, in the presence of a catalyst containing a palladium, wherein the region in which oxygen is substantially absent is 0.1 to 10% by volume with respect to a total of the region in which oxygen is substantially present and the region in which oxygen is substantially absent.
摘要:
A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.
摘要:
The present invention relates to a composition of matter prepared in accordance with a method comprising the steps of: (a) combining a substance selected from the group consisting of: metal or metalloid, or an alloy thereof, or a compound thereof, or an homogeneous or inhomogeneous combination of at least two of the metal or metalloid, the alloy thereof, or the compound thereof, with a source of hydrogen, to form a first intermediate, (b) milling the first intermediate to effect reaction between the substance and the hydrogen to form a second intermediate, (c) combining the second intermediate with a source of an electronegative element, to form a third intermediate, and (d) milling the third intermediate to effect reaction between the second intermediate and the electronegative element. The composition of matter could be used as a hydrogen transfer facilitator or catalyst to enhance the kinetics of hydrogenation and dehydrogenation reactions.
摘要:
A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.
摘要:
A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.
摘要:
The present invention relates to a hydrogen storage composition prepared in accordance with a method comprising: (a) combining (i) a metalliferous material selected from the group consisting of: (A) metal or a metalloid, or an alloy thereof, or a compound thereof, or an homogeneous or an inhomogeneous combination of at least two of a metal or a metalloid, or an alloy thereof, or a compound thereof, or (B) a hydride of any of: a metal or a metalloid, or alloy thereof, or a compound thereof, or an homogeneous or an inhomogeneous combination of a metal or a metalloid, or an alloy thereof, or a compound thereof, with ii) a liquid consisting essentially of any of: water, at least one alcohol, or a mixture of water and at least one alcohol, to form a first intermediate; and (b) milling the first intermediate for form an hydrogen transfer facilitator; (c) combining the hydrogen transfer facilitator with a second metalliferous material selected from the group consisting of: (A) a metal or a metalloid, or an alloy thereof, or a compound thereof, or an homogeneous or inhomogeneous combination of at least two of a metal or a metalloid, or an alloy thereof, or a compound thereof, or (B) a hydride of any of: a metal or a metalloid, or an alloy thereof, or a compound thereof, or an homogeneous or inhomogeneous combination of at least two of a metal or a metalloid, or an alloy thereof, or a compound thereof, such combining effecting sufficient contact between the hydrogen transfer facilitator and the second metalliferous material so that the hydrogen transfer facilitator is configured to effect absorption or desorption of hydrogen by the second metalliferous material.