Carbon used in the CIL (carbon in leach) process for gold extraction is known for its high recovery rate and efficient adsorption, making it suitable for low-grade and complex ore types [3]. The CIL process, which involves cyaniding and carbon leaching, is designed to lower the gold mining operation cost and increase the gold recovery rate to 99% [2]. Additionally, the CIL process has been recognized for its high gold recovery rates, versatility, and cost-effectiveness, especially when compared to other methods like CIP (Carbon in Pulp) [3].

Based on the information available, there's a strong indication that the activated carbon used in the CIL process is known for its high recovery rate and efficiency in gold extraction when compared to other brands in CIP and CIL gold processing plants.