This invention relates to a composing preparation of sexi-fluorine epoxypropane, at the basis of oxygen oxidation method, improve selection of solvent, use two kinds of solvent to compose compound phase, raise contact concentration of raw material, it can add suppressive agent of aromatic compound into liquid phase medium to restrain producing by-product. Compound solvent consists of compound of ethers and alkanes compound, among them compound of ethers is selected from C3H5OCl, C2F5OC4F9, C5F10OC3F7 or C4H9OC3F7,alkanes compound is selected from CCl4, CF2Cl2, CF2HCl, C2F3Cl3 or C7F16. |