Mineral oils: processes and products – Fractionation – Liquid extraction with solvents
Patent
1990-01-19
1991-01-01
Davis, Curtis R.
Mineral oils: processes and products
Fractionation
Liquid extraction with solvents
585624, C07C 120
Patent
active
049820311
ABSTRACT:
Internally unsaturated near linear oligomers of lower olefins are converted into alpha olefins, or 1-alkenes, of essentially the same degree of linearity. The internally unsaturated olefins are the product of lower alkene oligomerization using a surface deactivated zeloite, such as ZSM-5 or ZSM-23, and contain about 1 to 2 methyl branches per twelve (12) carbon atoms. The feedstock is converted to alpha olefin oligomers which also contain approximately 1 to 2 methyl branches per thirteen (13) carbon atoms. The conversion is achieved by hydroformylation of the near linear internal olefins to provide a novel 1-alkanol oligomer structure without further branching of the carbon oligomeric chain. Acetylation of the 1-alkanol followed by deesterification by pyrolysis provides the sought for near linear 1-alkene. The near-linear oligomers of lower olefins so produced comprise vinyl hydrocarbon monomers that can be further oligomerized by cationic and coordination catalysts.
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Davis Curtis R.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
Wise L. G.
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