CARBON FIRING SYSTEM.
In the CIL CIP process, the sorption and desorption sections produce substandard grade coal fines that contain significant amounts of noble metals. It is not possible to return the substandard carbon fines to the main process as they will be screened in the sorption process and sent to the tailings. However, the sorption properties of substandard carbon are equivalent to those of conditioned carbon, so the loss of substandard grade is undesirable due to precious metal losses.
To avoid the loss of substandard carbon with the tailings, traps are installed at the plants to separate the substandard carbon from the conditioned carbon. However, the processing of the substandard class by classical CIL CIP methods is difficult for the reasons mentioned above.
