In a method of manufacturing open-cell bodies, individual parts of an open pore plastic in a size which corresponds to the size of the bodies to be manufactured while taking account of the shrinkage on a sintering or an open pore plastic element having predetermined break points which take account of the size and geometrical design of bodies to be manufactured are/is in filtrated and coated with a suspension in which at least one powdery material is contained. Organic components are expelled after a first heat treatment. Subsequently, a sintering is carried out. Parts of porous plastic provided with the suspension are separated before the first heat treatment or wherein, afterwards the open-cell element which is obtained from the plastic element from the material with which the bodies are formed is cut by forces and thereby separated bodies can be obtained.

The present invention relates to a Cu-based catalyst, a preparation process thereof and its use as the dehydrogenation catalyst in producing a hydroxyketone compound such as acetoin. Said Cu-based catalyst contains copper, at least one auxiliary metal selected from metal of Group IIA, non-noble metal of Group VIII, metal of Group VIB, metal of Group VIIB, metal of Group IIB and lanthanide metal of periodic table of elements, and an alkali metal, and further contains at least one ketone additive selected from a ketone represented by formula (II) and a ketone represented by formula (II′). Said Cu-based catalyst shows a high the acetoin selectivity as the dehydrogenation catalyst for producing acetoin.
R1-C(═O)—CH(OH)—R2  (II)
R1-C(═O)—CH(═O)—R2  (II′) In formulae (II) and (II′), each group is defined as in the description.

A method for preparing a reaction product including an aryl-functional silane includes sequential steps (1) and (2). Step (1) is contacting, under silicon deposition conditions, (A) an ingredient including (I) a halosilane such as silicon tetrahalide and optionally (II) hydrogen (H.sub.2); and (B) a metal combination comprising copper (Cu) and at least one other metal, where the at least one other metal is selected from the group consisting of gold (Au), cobalt (Co), chromium (Cr), iron (Fe), magnesium (Mg), manganese (Mn), nickel (Ni), palladium (Pd), and silver (Ag); thereby forming a silicon alloy catalyst comprising Si, Cu and the at least one other metal. Step (2) is contacting the silicon alloy catalyst and (C) a reactant including an aryl halide under silicon etching conditions.

Trimethylhexamethylenediamine is produced by hydrogenating a trimethylhexamethylenedinitrile-comprising mixture in the presence of at least ammonia and hydrogen and a catalyst in the presence or absence of solvent, wherein the catalyst has the following properties: I. after activation the catalyst in its entirety has the following composition in weight percent (wt %), wherein the proportions add up to 100 wt %, based on the metals present: cobalt: 55 to 95 wt %, aluminum: 5 to 45 wt %, chromium: 0 to 3 wt %, and nickel: 0 to 7 wt %, and II. the catalyst is present in the form of irregular particles as granulate and after activation has particle sizes of 1 to 8 mm.

The present invention provides a catalyst for production of nitric oxide from ammonia and oxygen. The catalyst has the composition A.sub.3-xB.sub.xO.sub.9-y, wherein A and B are selected from the group Mn, Co, Cr, Fe and Al, x is between 0 and 3 and y is between 0 and 6. The catalyst has a high selectivity towards nitric oxide and a low ignition temperature in the reactor. Further the present invention relates to a method for the production of gas comprising nitric oxide by the catalyst of the present invention. The produced gas has a low content of nitrous oxide.

A piston capable of reducing undesirable “knock,” reducing hydrocarbon emissions, and providing more complete combustion, is provided. The piston includes a multilayer coating having a thickness of 500 microns or less disposed on an upper combustion surface. The coating includes a bond layer including nickel disposed on the upper combustion surface. A thermal barrier layer including a ceramic composition is disposed on the bond layer. A sealant layer formed of metal is disposed on the thermal barrier layer. A catalytic layer including at least one of platinum, ruthenium, rhodium, palladium, osmium, and iridium is disposed on the sealant layer. The catalytic layer can be disposed on select regions or the entire upper combustion surface to promote combustion through a catalyzed reaction.

The invention relates to a catalyst for preparation of butadiene by oxydehydrogenation of butene in a fluidized bed reactor, a method of preparing the same, and use of the same, wherein a method according to an embodiment of the invention comprises: reacting a metal precursor with an alkaline substance to obtain a slurry containing insoluble compound, followed by filtering and washing the slurry; adding a binder and deionized water, followed by agitation to regulate the solid content of the slurry to 10-50%; subjecting the slurry to spray drying granulation, wherein the temperature at the feed port is controlled between 200-400° C., and the temperature at the discharge port is controlled between 100-160° C., to obtain catalyst microspheres; and drying the catalyst microspheres at 80-200° C. for 1-24 h, and then calcining the catalyst microspheres at 500-900° C. for 4-24 h to obtain a catalyst having a general formula of FeXaYbZcOd, comprising Fe, Mg, Zn, Bi, Mo, Mn, Ni, Co, Ba, Ca, and other metals. The catalyst microspheres prepared according to the exemplary method exhibit high mobility, desirable particle size distribution, extremely high mechanical strength and catalytic activity, and are applicable to industrial production of butadiene by oxydehydrogenation of butene in a fluidized bed. When this catalyst is used to prepare butadiene by oxydehydrogenation of butene, the yield of butadiene is 76-86%, and the selectivity to butadiene is 94-97%.

The invention relates to a fluorination process, alternately comprising reaction stages and regeneration stages, wherein the reaction stages comprise reacting a chlorinated compound with hydrogen fluoride in gas phase in the presence of a fluorination catalyst to produce a fluorinated compound, and the regeneration stages comprise contacting the fluorination catalyst with an oxidizing agent-containing gas flow.

A solution and method of creating such for producing silicon nanowires or silicon nano-plates. The solution comprising distilled water, Potassium Hydroxide (KOH), at least one catalyst, Sodium Methyl Siliconate (CH.sub.5NaO.sub.3Si), Ethylenediaminetetraacetic Acid (EDTA), which act as a first chelating agent, Sodium Diethyldithiocarbamate (C.sub.5H.sub.10NS.sub.2Na), which acts as a second chelating agent, and Dimethylacrylic Acid, which acts as a buffer that is able to regulate the amount of silicon nanowires or plates formed and to prevent agglomeration. The concentration of the Sodium Diethyldithiocarbamate in the solution is greater than concentration of the EDTA in the solution for forming a plurality of thick and short nanowires, and the concentration of the Sodium Diethyldithiocarbamate in the solution is less than the concentration of the EDTA in the solution for forming a plurality of thin and long nanowires.

Disclosed are novel catalyst compositions, catalyst precursors, processes for making catalyst precursors, processes for making catalyst compositions, and processes for converting syngas. The catalytic component in the catalyst composition can comprise a metal carbide and/or a metal nitride. This disclosure is particularly useful for converting syngas via the Fischer-Tropsch reactions to make olefins and/or alcohols.