A specific example of one such catalyst is a composite of a crystalline aluminosilicate, a platinum group metal component, a cobalt component, a tin component, and a halogen component, for utilization in a hydrocracking process. Other hydrocarbon hydroprocesses are directed toward the hydrogenation ...
aIn addition, the properties of biodiesel produced were found to be comparable with those produced from conventional methanol-based reaction but suffers from long reaction time (5 h) and the presence of catalyst necessitates tedious separation and purification procedures. 另外,导致的biodiesel物产被发现...
< / p & gt; & lt; p & gt; are placed in contact with these aromatic hydrocarbons, with an alkylating agent in a reactor containing a crystalline silica polymorph of the silicalite type as the catalyst, the temperature at the input of the zone of the reaction being between approximately ...
a 4) ...is often cited as an example。 正在翻译,请等待...[translate] aThe detection of A11-reactive oligomers in the absence but not the presence of O4 suggested that it either masks the epitope for antibody binding or converts A11-reactive oligomers into larger structures, which cannot be...
A catalyst system for the selective reduction of gaseous NO. sub.x in the presence of excess oxygen, having a copper-containing ZSM5 zeolite to which a NO.sub.x -containing gas is exposed, and means for introducing a metered volume of f... R Etcheberrigaray - 《Proceedings of the Nati...
An ester compound, for example, carbonic acid ester or succinic acid ester, is produced by catalytically reacting, in gas phase, carbon monoxide with a nitrous acid ester and optionally an olefin in the presence of a catalyst and in the presence of a chlorine-containing substance, bringing the...
Group 2: sound production, stridulation, acoustic communication: for example, “bark beetle AND sound production”. The search retrieved 704 documents, from which 93 were selected based on information in the abstract. Reports of stridulatory behaviours, plots of stridulatory signals, or ...
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The invention provides methods and systems for manufacturing low-acid polyalkylene terephthalate, for example, polybutylene terephthalate (PBT). The invention also provides methods and systems for preparing macrocyclic polyester oligomer (MPO) from low-a
Addition homo- or copolymerization of acrylonitrile and/or methyl acrylate in mixture with crosslinking agent, free radical catalyst, dispersion aid, and i... exchangers can be converted into other forms, for example into the OH form, in known ways by exchange of the chloride ion for a differ...