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本文研究了在1150℃,1200℃和1250℃下熔锍Cu_2S与氢反应的动力学。动力学方程式为: 单相熔体 u_(S％)=d(S％)/dτ=k_S(S％-a)~2P_(H_2)~(1/2) 分层区 u_S％=d(S％)/dτ=AP_(H_2)~(1/2) 通过测定反应速度与硫浓度状态曲线的转折点,验证了Cu-S系相图分层的数据,此数据含硫成分为: ℃ 1150 1200 1250 ％ 19.805 19.73 19.61 研究了温度对反应速度的影响,测得反应活化能E和反应速率常数k: E=11000卡/克分子Cu_2S k_(1150℃)=3.27×10~(-2)/分·S％·大气压1/2 k_(1200℃)=3.76×10~(-2)/分·S％·大气压1/2 k_(1250℃)=4.12×10~(-2)/分·S％·大气压1/2 实验数据表明,反应速度受温度的影响是不大的。还讨论了Cu-S系相图与反应速度的关系。
In this paper, the kinetics of reaction of Cu_2S with hydrogen sulphide with hydrogen at 1150 ℃, 1200 ℃ and 1250 ℃ was studied. The kinetic equation is: single-phase melt u_ (S%) = d (S%) / dτ = k_S (S% -a) ~ 2P_ (H_2) %) / Dτ = AP_ (H_2) ~ (1/2) The data of stratification of Cu-S phase diagram were verified by measuring the turning point of reaction velocity and sulfur concentration state curve. The sulfur content in this data is: 1250% 19.805 19.73 19.61 The influence of temperature on the reaction rate was studied. The reaction activation energy E and the reaction rate constant k were calculated: E = 11000 cal / mol Cu2S k_ (1150 ℃) = 3.27 × 10 -2 / min · S% · Atmospheric pressure 1/2 k · (1200 ° C) = 3.76 × 10 -2 / min · S% · Atmospheric pressure 1/2 k 1250 ° C = 4.12 × 10 -2 / min · S % · Atmospheric pressure 1/2 experimental data show that the reaction rate is not affected by the temperature. The relationship between Cu-S phase diagram and reaction rate was also discussed.