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General
- Propylene
oxide is a volatile, clear, colorless, extremely flammable
liquid with an ether-like odor.
- Propylene
oxide is a highly toxic flammable chemical compound. It is an
epoxide having a molecular formula C3H6O.
Process
-
Propylene oxide is obtained through propylene hydro
chlorination.
-
Propylene Oxide is produced by the established chlorohydrin
process, in which propylene and chlorine react in the
presence of water to form the intermediate propylene
chlorohydrin.
- At
present there are two major industrial processes used for
the synthesis of propylene oxide: The chlorohydrin and
peroxide processes.
- The
hydroperoxide process is another costly method for producing
propylene oxide(PO).
Uses
-
Propylene oxide is also used in the production of
propylene glycol, polypropylene glycol, propylene
glycols ethers and propylene carbonate.
-
Propylene oxide major industrial application is as a
monomer for the production of polyether polyols for use
in making polyurethane plastics.
-
Propylene oxide may be used in fumigation chambers for
the sterilization of packaged foods and as a pesticide.
-
Propylene oxide is used primarily as a building block
for the manufacture of a versatile range of derivative
products.
Report
-
The
total production capacity of propylene oxide in
Japan is approximately 350 thousand tons at present,
including the 170 thousand tons of Nihon Oxirane.
-
Propylene oxide is a major industrial product with
production of more than 6 million tons per year
world wide. Approximately 70% of it is used as
polypropylene glycol in the raw materials for
urethane, and the remainder is used as propylene
glycol in the raw materials for unsaturated
polyesters, food product additives and cosmetics.
-
During the past 10 years, propylene oxide grew at a
nearly 4 percent annual rate. Propylene oxides's
growth should moderate to about 3 percent in the
present decade because most of its applications are
maturing.
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