Epoxy propane, also known as oxidized propylene and methyl ethylene oxide, is a very important organic compound raw material, is the third largest propylene derivative after polypropylene and acrylonitrile. Epoxy propane is a colorless etherified liquid with low boiling point and flammability. Chiral, industrial products are typically racemic mixtures of two enantiomers. It is partly miscible with water and partly miscible with ethanol and ether. Binary azeotropic mixture was formed with pentane, pentene, cyclopentane, cyclopentene and dichloromethane. Toxic to mucosa and skin irritation, can damage the cornea and conjunctiva, cause respiratory pain, skin burns and swelling, and even tissue necrosis.
Molecular formula: C3H6O
Molecular weight: 58.08
Molar mass: 58.08 g/mol
Density: 0.830 g/cm3 (20 ° C)
Melting point: - 112 ° C
Boiling point: 34 ° C
Hazard grade: F+:Highly flammable; T: Toxic;
Risk terms: R12:; The R20/21/22:; R36/37/38:; R45:; R46:;
Safety terms: S45:; S53:;
In the water solubility: soluble (20 ° C), 405 g/L,
The refractive index (nD) : 1.3664 (20 ° C)
Developed for the first time of epoxy propane, carbon dioxide and methanol synthesis of dimethyl carbonate reaction is of highly active and stable KOH / 4 a molecular sieve solid catalyst, the reaction temperature and catalyst active component of KOH load factors effect the performance of the catalyst. Under the optimized experimental conditions, epoxy propane can completely transform, the yield of dimethyl carbonate is 16 8% from experimental results that the product dimethyl carbonate by carbon dioxide and propylene oxide and addition, propylene carbonate, and then the ester exchange reaction with methanol generated, Methanol is a cocatalyst for the synthesis of propylene carbonate from propylene oxide and carbon dioxide.
Epoxy propane is mainly used for production of polyether polyols, propylene glycol, etc., all kinds of nonionic surfactant of polyether polyols is the production of polyurethane foam, insulation materials, elastomers, adhesives and coatings and other important raw materials, all kinds of nonionic surfactants in oil, chemical, pesticide, textile, daily chemical and other industries widely used. At the same time, propylene oxide is also an important basic chemical raw material.
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