(昆明理工大學 材料與冶金工程學院， 昆明650093)
摘 要: 提出微波預處理廢觸媒—酸浸提鋅新工藝，測定廢觸媒在微波場中的溫升曲線，探索微波預處理溫度和保溫時間對浸出率的影響，并對微波預處理廢觸媒機理進行分析。結果表明：微波預處理可顯著提高鋅的浸出率，當微波預處理溫度和時間分別為950 ℃和12 min時，鋅的浸出率達到96.58%。微波預處理打開了堵塞的廢觸媒孔道，增大了浸出劑與鋅的接觸面積。
關鍵字: 微波預處理；廢觸媒；浸出率
spent catalyst saturated with zinc acetate
（Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology,
Kunming 650093, China）
Abstract:A new technology for microwave pretreatment of spent catalyst-leaching of zinc in hydrochloric acid solution was developed and the temperature-rising curves of catalyst was measured under microwave irradiation. The influence of microwave pretreatment temperature and microwave irradiation time on the leaching rate was studied. The mechanism of microwave pretreatment was also studied. The results show that microwave pretreatment can greatly improve the leaching efficiency of spent catalyst saturated with zinc acetate, and the microwave pretreatment temperature and the microwave irradiation time are 46 ℃ and 12 min, respectively. The leaching rate of Zn reaches 96.58% at above- mentioned conditions. The blind pores can be opened through microwave pretreatment, and the specific area of leaching reagent and zinc increases.
Key words: microwave pretreatment; spent catalyst; leaching rate
