Metal alkyls is a class of organometallic compounds that
contains a carbon - to - metal sigma bond. Metal alkyl derivatives of
transition metal are s - bonded organometallics. There are various routes by
which the metal alkyls can be synthesized. They play an important role in the
process of the Ziegler-Natta type, single-site, and other specialized catalyst
systems. Key metal alkyls include aluminum, lithium, boron, zinc, and magnesium
alkyl. Metal alkyls are mostly chemically reactive and flammable. They also
react with air or water. Metal
alkyls are used in polymer production, synthesis of fine chemicals,
pharmaceuticals, and processes for production of semiconductor devices and
photovoltaic modules. They are also used in various every day products such as
packaging materials, fibers, and adhesives. Metal alkyls are produced by a variety
of methods and chemical processes.
Some of
the metal alkyls are Metal alkyls Diethylaluminum Chloride (DEAC),
Diethylaluminum Ethoxide (DEALOX), Diisobutylaluminum Hydride (DIBAH),
Ethylaluminum Dichloride (EADC), Ethylaluminum Sesquichloride (EASC),
Triethylaluminum (TEAl), and Triisobutylaluminum (TIBA). For example,
Triethylaluminum (TEAl) is primarily used as a cocatalyst in the Ziegler-Natta
polymerization of olefins. It is also used as an intermediate in the
manufacture of other organometallic compounds, for ethylene oligomerization in
the production of olefins, and for the manufacture of fatty alcohols.
Metal
alkyls are used in a wide range of applications. The primary area of
application of metal alkyls is polymerization of olefins and dienes by
Ziegler-Natta (ZN) catalyst systems. Metal alkyls and aluminoxane are also used
as catalyst in various related technologies that are extensions of Ziegler
chemistry. These include oligomerization of ethylene, dimerization and
cyclodimerization of olefins and dienes, and ring-opening polymerization. Metal
alkyls are used in the production of polypropylene, polyethylene, and several
types of synthetic rubber. These are then used in consumer products such as
plastic packaging, toys, and automotive parts.
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Aluminum
and zinc alkyls are the popular metal alkyl compounds used in the CVD process.
These alkyl compounds are suitable for producing sulfide and oxide films. In
case of aluminum, alkyls of higher molecular weight alkyls are generally used
since less amount of unwanted carbon is embedded into films. Typically, metal
alkyls react with oxygen, water, sulfur, and other basic reagents to create the
desired film composition.
Increase
in demand for metal alkyls owing to the growth in the polymer sector and chemical
synthesis is the key factor driving the market. Metal alkyls are employed as
catalysts in the production of polymers, which, in turn, are used in the
production of textiles. This is likely to augment the demand for metal alkyls
during the projected period. Chemical reactivity to air and water, and
difficulty in transportation are the major restraints of the metal alkyls
market. High cost of research and development also acts as a key restraint of
the global metal alkyls market.
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Based on
region, the metal alkyls market can be segmented into North America, Europe,
Asia Pacific, Latin America, and Middle East & Africa. Asia Pacific is the
dominant region of the metal alkyl market due to the rise in demand for
catalysts in the manufacture of chemicals. The metal alkyls market in North
America and Europe is anticipated to expand due to presence of a large number
of manufacturers in these regions.
Key
participants in the global metal alkyls market include AkzoNobel, Gulbrandsen,
Albemarle Corporation, and LANXESS.
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