2781-00-2

The invention discloses a chemical synthesis method of organic peroxide. The chemical synthesis method comprises the following step that a condensation reaction is carried out on metal+para 2-cumene alcohol (m+p DC for short) and tert-butyl hydroperoxide (TBHP for short), so that a meta+para bis-(tert-butyl peroxy isopropyl)benzene (m+p BIPB for short) is obtained. According to the process disclosed by the invention, waste sulfuric acid is converted into a chemical byproduct, so that the pollution pressure of the waste sulfuric acid can be solved, and economic benefits can be obtained. 70% sulfuric acid only with 1%-3% of the total amount of the reaction materials is added in the reaction, and the completion of the synthesis reaction is successfully completed under the action of a 7# accelerator, so that the consumption of the 70% sulfuric acid and 30% NaOH is greatly reduced.

An aliphatic or cycloaliphatic hydroperoxide, an olefin such as a 1-aromatic-1-substituted ethylene and a halide corresponding to the ethylene are reacted under essentially anhydrous conditions, in the absence of a free acid, at a temperature below the decomposition temperature of the halide to obtain a peroxide corresponding to the hydroperoxide and the ethylene. Preferably the product peroxide is recovered by treating the reaction product mixture with aqueous alkali metal hydroxide to destroy the halide and hydroperoxide therein; then distilling the treated mixture in the presence of a substantial amount of liquid water at sub-atmospheric pressure to remove overhead impurities. Example: Dicumyl peroxide is prepared by reacting at about 30° C. for about 5 hours cumene hydroperoxide, α-methylstyrene and cumyl chloride, which compounds has been charged to the reaction zone in a mole ratio of 1.25:0.86:0.14 and treating the reaction product mixture with aqueous alkali metal hydroxide to remove cumyl chloride and cumene hydroperoxide to obtain a product mixture including dicumyl peroxide; and adding 2-10 parts of liquid water to the product mixture in a distillation zone and vaporizing water and impurities at a temperature of about 30°-80° C. at a pressure of about 0.01-0.5 atmospheres and continuing said vaporization until essentially no oily liquid is obtained in a condensor receiving vapors from said zone, under conditions such that a substantial amount of liquid water is present in said zone in contact with peroxide product.