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General
- Oxo
alcohols are alcohols that are prepared by adding carbon monoxide (CO)
and hydrogen to an olefin to obtain an aldehyde using the
hydroformylation reaction and then hydrogenating the aldehyde to obtain
the alcohol.
- Oxo
alcohols are sold as n-Butanol, 2-Ethylhexanol, Isononyl alcohol,
Isodecyl alsohol.
Process
- The Oxo
process is a two-stage process for producing alcohols from olefins,
first, treating the mixture of olefins with carbon monoxide and hydrogen
to form aldehydes, and second, reducing them by the use of commercial
hydrogen.
- The most
important synthetic route accounting for over 95% of 2-EH production is
based on propylene which after initial hydro formylation is converted
into an Oxo crude product.
Technology
- The LP
Oxo SM Process is extensively used to produce normal and
iso-butyraldehydes from propylene for subsequent conversion to the
work-horse plasticizer alcohol, 2-ethylhexanol, or to butanols for
solvent uses.
- The LP
Oxo SM Process technology has been developed for converting normal
butenes to the new plasticizer alcohol 2-propylheptanol, and it has been
applied commercially to produce alcohols from higher olefins, notably
the production of C11 to C14 higher alcohols from olefin cuts produced
from Fischer-Tropsch synthesis.
Uses
- Oxo
alcohols are used as solvents and are reacted with phthalic anhydride to
form phthalates, which find use in commerce as vinyl plasticizers.
-
Iso-Nonanol is predominantly used as alcohol component in plasticizer
manufacturing
-
2-Ethylhexanol is used for the manufacture of the acrylate esters which
are used in adhesives and surface-coating materials such as acrylic
paints, in printing inks and as impregnating agents.
Report
- The
run-up in energy and feedstock costs that has hampered virtually the
entire petrochemicals industry is pressuring manufacturers of oxo
alcohols. Producers are scrambling to raise prices to offset cost
increases that have crushed margins, but they face uncertain demand in
the US, Europe and Asia.
- A company
in South Africa is increasing its competitiveness in the highly
contested alcohol production market by bringing new capacity on line and
simultaneously restructuring capacity in some inefficient operations.
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