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本文评述了炭浆法工艺中存在着炭损失金问题,采用化学热处理法制备了磁性活性炭,与普通活性炭相比,其吸金速度和载金容量相近,吸附之金能顺利解吸,它经多次重复使用后仍保持磁性,采用磁选机可回收75%以上碎载金炭。磁性炭用于炭浆法是可行的。采用磁性炭浆法工艺(MCIP/MCIL)可以明显提高黄金回收率。
This paper reviews the existence of carbon loss in the carbonization process of the gold problem, the use of chemical heat treatment prepared magnetic activated carbon, compared with ordinary activated carbon, the gold absorption rate and gold loading capacity similar to the adsorption of gold can be successfully desorbed, after many times After repeated use remains magnetic, the use of magnetic separator can be recovered more than 75% broken load gold. Magnetic carbon for the carbon slurry method is feasible. The magnetic carbon slurry process (MCIP / MCIL) can significantly improve the gold recovery rate.