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本文研究了在二苯甲酰甲烷氧钒VO(dbm)_2存在下,环己基过氧化氢(CHHP)的分解动力学,实验表明:CHHP催化分解接近等摩尔生成环己醇和环己酮,产物环己醇对CHHP的分解有明显阻化作用,当(VO(dbm)_2)<2.5×10~(-4)M/1、温度在50—70℃之间时,CHHP催化分解的初始速率R_o服从如下关系式: R_o=kK[VO(dbm)_2]_o[CHHP]_o/(1+K[CHHP]_o) 表观活化能E_a=53.7KJ/M,k=1.9×10~8exp(-53.7×10~3/RT)秒~(-1)。
In this paper, the decomposition kinetics of cyclohexyl hydroperoxide (CHHP) in the presence of vanadyl dibenzoylmethane VO (dbm) 2 has been studied. The experimental results show that the catalytic decomposition of CHHP is nearly equal to the molar yield of cyclohexanol and cyclohexanone. Cyclohexanol has obvious resistance to the decomposition of CHHP. When (VO (dbm) 2) is less than 2.5 × 10 -4 M / 1, the initial rate of CHHP catalytic decomposition R_o obeys the following relation: R_o = kK [VO (dbm) _2] _o [CHHP] _o / (1 + K [CHHP] _o) The apparent activation energy E_a = 53.7KJ / M and k = 1.9 × 10 ~ 8exp -53.7 × 10 ~ 3 / RT) seconds ~ (-1).