The resin-in-pulp (RIP) process was developed primarily for the recovery of metals from high volumes of low-grade pulps, as is the case in the gold processing industry. However, this technology can also be applied to the recovery of soluble metals from solid residues on base metal plants. Applications for the RIP process include the scavenging of valuable metals from leach and precipitation residues, especially where the solids have poor filterability of settling characteristics. The RIP process will improve overall plant recoveries, and it may be possible to decrease the filter duties of the degree of washing on the filters. In addition, the barren stream from the RIP operation may reduce any environmental impact significantly.^L^LBilliton Process Research (BPR) commissioned Mintek to investigate the metallurgical and economic feasibility of a resin-in-pulp process for the recovery of copper from bioleach counter-current decantation (CCD) underflows. Batch laboratory testwork and a continuous mini-plant campaign was conducted in order to optimise the process parameters. The results were used to conduct a preliminary sizing and costing study, in order to evaluate the economic viability of the RIP technology for this application.

This book discusses various examples on the use of ion exchange in chemical processing, mainly in aqueous systems but also in non-aqueous systems and in gas streams. The theory behind these examples is briefly discussed in order to make the subjects better understood. The focus is on ion exchange rather than on chemical processing, it is therefore addressed to all those working in chemical processing industries or in parallel industries for whom ion exchange is not their primary field of experience.

This volume recognizes the growing role of solvent extraction and electrowinning technology in the world copper business. This well-established, remarkable hydrometallurgical achievement fills an important role in our technical ability to extract copper in an efficient and cost-effective way. This proceedings documents the present status of the SX-EW business. It represents a substantial body of historical, scientific, engineering, and commercial information regarding the growth and application of the technology.

The purpose of this publication is to update and expand the first edition, which was published in 1983, and to report on later advances in uranium ore processing. It includes background information about the principles of the unit operations used in uranium ore processing and summarizes the current state of the art. Extensive references provide sources for specific technological details.