一还原反应甲、化学反应式: 乙、工艺流程: 丙、操作法: 于加热下將硝酸鈉50公斤与鉛122公斤,分别放入兩只容量約250升的铁鍋中熔融,約一小时可以全部熔化,待硝酸鈉温度升至360℃后(这时表面上剛有細泡出現),于攪拌下开始加入熔融的鉛,加入的速度应在每次加入后,鍋內不再發现小粒鉛珠存在时再加第二杓(約每隔3分鐘加4公斤)为度,以后溫度应控制在380—400℃之間,根据反应情况調节爐火,如果發 A reduction reaction A, chemical reaction type: B, process flow: C, operation method: Under heating, 50 kg of sodium nitrate and 122 kg of lead, respectively, into two iron pots with a capacity of about 250 liters, about one hour It can be completely melted. After the temperature of sodium nitrate is increased to 360°C (a fine bubble appears on the surface at this time), the molten lead is added under stirring. The addition rate should not be found in the pot after each addition. When the pellets are present, they are added with a second weight (about 4 kg every 3 minutes). After that, the temperature should be controlled between 380-400°C. Adjust the fire according to the reaction conditions.