火法熔炼回收失效重整催化剂中铂的试验研究OACHSSCD
Experimental Study on the Recovery of Platinum from Spent Reforming Catalysts by Pyrometallurgical Smelting
试验以失效重整催化剂为原料,采用火法熔炼工艺高效回收铂,主要考察捕集剂种类、捕集剂用量、碱度、熔炼温度和熔炼时间等因素对铂回收率的影响.结果表明,最优条件下,碱度为 1.1,熔炼温度为1400℃,熔炼时间为 4 h,捕集剂用量为原料质量的 25%,焦炭用量为原料质量的 5%,CaO用量为原料质量的 40%,熔炼渣的Pt品位为 11.8 g/t,Pt回收率为 99.27%.所得产物铜合金的主要成分为单质铜,含量为 90%～94%,Pt品位为 1.95%～1.98%.
The experiment uses spent reforming catalysts as raw materials and adopts a pyrometallurgical smelting process to efficiently recover platinum,and mainly investigates the factors affecting the platinum recovery rate,such as the type and amount of capturing agent,alkalinity,smelting temperature,and smelting time.The results show that under the optimal conditions,the alkalinity is 1.1,the smelting temperature is 1400℃,the smelting time is 4 h,the amount of capturing agent is 25%of the raw material mass,the amount of coke is 5%of the raw material mass,the amount of CaO is 40%of the raw material mass,the Pt grade of the smelting slag is 11.8 g/t,and the Pt recovery rate is 99.27%.The main component of the obtained copper alloy is elemental copper,the content is 90%～94%,and Pt grade is 1.95%～1.98%.
张金池;刘贵清;张帆;王芳;解雪
江苏北矿金属循环利用科技有限公司,江苏 徐州 221121
冶金工业
失效重整催化剂铂回收火法熔炼捕集
spent reforming catalystplatinumrecoverypyrometallurgical smeltingcapture
《中国资源综合利用》 2024 (006)
26-28,32 / 4
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