WebAxens homogeneous oligomerization technologies rely on strong expertise accumulated over 50 years in order to provide the most efficient and cost-effective solutions to produce high purity 1-Butene and 1-Hexene via ethylene dimerization and trimerization, as well as octenes by means of butenes dimerization. Select an application. WebJun 24, 2000 · Tandem acyclic diene metathesis (ADMET) polymerization/catalytic hydrogenation has been exploited to synthesize copolymers modeling ethylene/vinyl acetate (EVA) materials. A series of four sequence-ordered ethylene-co-vinyl acetate copolymers were prepared possessing precisely defined ethylene run lengths from 18 to …
Enhanced Olefin Metathesis Performance of Tungsten …
WebFeb 4, 2000 · The cross-metathesis of styrene with various vinylsilanes, H2CC(H)SiR3, catalyzed by [Cl2(PCy3)2RuCHPh] (1) to give (E)-silylstyrene, (E)-Ph(H)CC(H)SiR3, and ethylene is reported. The reaction proceeds even at room temperature and is highly selective. Very high conversions are observed when R = OEt, OSiMe3 (≥95%, 6 h, 2 mol … WebJun 16, 2024 · Without ethylene, the average MCL is 18 (isomerizing self-metathesis of RME). The isomerizing hexenolysis, used as a further reference point, gave an average MCL of 15 (entry 1). To ensure a defined ratio of RME and ethylene, a two-step process consisting of non-isomerizing ethenolysis of RME followed by isomerizing metathesis of … brack firewall
Ethylene-Promoted versus Ethylene-Free Enyne Metathesis
Web2 days ago · The cobaltosilicate zeolite catalyst (CoS-1) for non-oxidative dehydrogenation and sodium tungstate-modified manganese oxide promoter (MnOx@Na2WO4) for selective hydrogen combustion were interleaved, stacked in a domino mode in multiple beds and used for ethane dehydrogenation, achieving high ethane conversion with well-maintained … WebWith the OCT process, lower-value butylenes are reacted with ethylene to produce propylene. The ethylene stream can vary from dilute ethylene typical of the FCC unit to … WebOlefins Conversion Technology (OCT) employs metathesis and isomerization chemistry to produce propylene from reacting ethylene with C 4 and/or C 5 olefins. This is the only … h2 health mayo