.化工专业英语词汇reaction kinetics 反应动力学reactant 反应物purify 精制提纯recycle 循环回收 unconverted reactant未转化的反应物chemical reactortransfer of heat, evaporation, crystallization结晶drying干燥screening筛选，浮选chemical reaction化学反应cracking of petroleum石油裂解catalyst催化剂， reaction zone反应区conservation of mass and energy能量与质量守衡定律technical advance 技术进步efficiency improvement 效率提高reaction 反应separation 分离 heat exchange 热交换 reactive distillation 反应精馏capital expenditure 基建投资
