butene

This option may also be used when there is no butene feedstock.

These two isomers of butene are slightly different in their chemical and physical properties.

These acids can then be decarboxylated to produce butene and CO.

The process was much more economical than the alcohol route but competed with aviation gasoline for available butene molecules.

Cracking produces a mixture of products, and the butene is extracted from this by fractional distillation.

The simplest alkenes, ethene, propene and butene are gases.

In this case, part of the ethylene feeds an ethylene-dimerization unit that converts ethylene into butene.

The physical state depends on molecular mass (gases from ethene to butene - liquids from pentene onwards).

The catalyst protonates the alkenes (propene, butene) to produce reactive carbocations, which alkylate isobutane.

It is used to convert isobutane and low-molecular-weight alkenes (primarily a mixture of propene and butene) in the presence of a strong acid catalyst.

Usually, octene is the comonomer in solution phase while butene and hexene are copolymerized with ethylene in a gas phase reactor.

Benzene, Toluene, White Spirit, Poly Iso Butene and Sulphur.

Ethylene is shipped directly to customers; the propene and butene streams are used as feedstocks, mainly for the higher olefins plant and the isobutylene plant.

Tributylphosphine is prepared industrially by the addition of phosphine to butene: the addition proceeds by a free radical mechanism, and so the Markovnikov rule is not followed.

No double bond migrations are observed, the reaction can be started with the butene and hexene as well and the reaction can be stopped by addition of methanol.

In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher alpha-olefins as butene, hexene, or octene.

Liquefied petroleum gas sold in the United States has a higher percentage of propane and almost none of the environmentally harmful butane and butene found in Mexico.

Thanks to two of its components, butane and butene, both harmful to the environment, the use of propane has helped make Mexico City one of the world's most polluted cities.

The olefin feed to an alkylation unit generally originates from a FCCU and contains butene, isobutane, and possibly propene and/or amylenes.

Assistant Director PG Research Foundation, Darien, Illinois For a beginning, fumaric acid is the common name for trans-1,2 butene dioic acid.

It is prepared using n-BuLi which substitutes Cl with butyl ligands and subsequently undergoes metallocyclisation when warmed to 273K to give one η2-butene ligand, eliminating the other butyl ligand as butene.

The initial stage for many of the chemical products is the steam cracker, which takes a feedstock of heavy naphtha or gas oil from the refinery to produce basic chemical building blocks: ethylene, propene and butene.

The most common stretch wrap material is linear low-density polyethylene or LLDPE, which is produced by copolymerization of ethylene with alpha-olefins, the most common of which are butene, hexene and octene.

"And as soon as we looked at the composition we realized it was different from most U.S. cities because of the high levels of butane and propane," which, with more volatile butene, are major ingredients in Mexico's bottled gas.

This process was one of the three used in the United States to produce "government rubber" during World War II, though it was not preferred because it is less economical than the butane or butene routes for the large volumes needed.