butylene

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Related to butene: benzene, Isobutene

butylene

Any one of several hydrocarbons with a formula C4H8, of the ethylene series, either as one of seven straight chain isomers or one of three branched chains. They are gases at room temperature, but easily liquefied by raising the pressure or lowering the temperature.
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References in periodicals archive ?
In experimental runs, the conversion of butane on quartz sand is higher than that on the catalyst, but the conversion of butene on quartz sand is lower than that on the catalyst.
This difference could be due to the differences in strain hardening of octene based EAO copolymers versus butene based EAO copolymers, it has been postulated that this increase in strain hardening (i.e., slope of strain hardening) is due to differences in the amount of tie chain molecules.
* ENR 7270 (0.8 MI, 0.880 g/cc), ENR 7447 (5 MI, 0.865 g/cc), and ENR 7467 (1.2 MI, 0.862 g/cc) are three butene grades designed for automotive TPOs and non-automotive plastics modification.
Also claiming improved processing is ENX 7458, a 2.5 MI, 0.863 g/cc butene grade.
It required a fourth extruder and a five-layer feedblock and allowed use of less-expensive butene LLDPE reinforced with thin support layers of thennew metallocene LLDPE.
Nigeria's Phase Two Petrochemical Plants PRODUCT CAPACITY Ethylene 330,000 t/y Propylene 90,000 t/y Butene -122,000 t/y Polypropylene 80,000 t/y Polyethylenes (HDPE, LDPE, LLDPE) 250,000 t/y
CTIP (Italy) for the butene unit; and Snamprogetti (Italy) for the aromatics plant.
C517 is also a butene copolymer and has 0.934 density and 6.0 MI.
"I can use as many as nine different resins, including cheap butene LLDPE," he says.
The capacity of each unit was as follows: 330,000 t/y of ethylene, with naphtha as feedstock supplied by the Ras Lanuf refinery; 171,000 t/y of propylene; and 135,000 t/y of butene.
This is particularly true in LLDPE, where the old ranking of copolymer types (octene, hexene, butene) by strength and other mechanical properties is no longer strictly valid.
for the ABS, SAN and butadiene units; TPL (Italy) for the ethylene glycol, ethylene oxide, MTBE, alkylation and polymer gasoline units; CTIP (Italy) for the butene unit; and Snamprogetti (Italy) for the aromatics plant.