冶金反应过程动力学的分段尝试法

冶金反应工程学属于一门独立的学科,需要建立自己的一套研究反应动力学的新方法。为了避免与冶金物理化学的方法和内容的重叠,本文提出分段尝试法可作为研究冶金反应过程动力学的新方法。依据反应过程特点,建立相应动力学模型进行拟合尝试,能够得到该过程控制环节转换时间点以及动力学参数,为冶金模拟提供必要的物性参数。由于在实际冶金反应过程中,化学反应过程和质量传输过程的耦合是客观存在的,化学反应控制时质量传输也发生;同理,质量传输控制时也有化学反应。因此,提出通过引用不可逆过程热力学唯象理论来确定出化学反应和扩散控制的两种通量之间的影响,从而进一步完善分段尝试法。

Sectional method of reaction kinetics in metallurgical reaction engineering

As metallurgical reaction engineering is an independent subject,a new method of studying reaction kinetics should be established to distinguish from metallurgical physical chemistry. To avoid the overlap be-tween the method and content of two subjects,sectional method is proposed for researching metallurgical reac-tion engineering. The transmission and reaction kinetics parameters in metallurgical reaction can be obtained, as well as the conversion time of different control links by establishing the kinetics models according to the transmission and reaction equations in metallurgical reaction engineering. Because of in practical metallurgical reaction,the coupling between chemical reaction process and mass transport process exist objectively. Chemi-cal reaction process happens with mass transport. Also,the mass transport process happens with chemical re-action. So the phenomenological theory of irreversible process thermodynamics is introduced to determinate the effect between chemical reaction and mass transport and to further modify the sectional method.