Induced Fluorescent Sorting Technique Holds Promise

Preliminary test results at Occidental Research Corp.’s Irvine, CA, research facility indicate the viability of a new induced fluorescent sorting technique for preconcentration of limestone, coal, and oil shale. The patented “Oxylore”* process is a preconcentration stage that takes advantage of selective surface chemistry to label either ore or gangue particles with a fluorescent coating that can be detected by activation with ultraviolet light. The technology was originally developed by Ted Matthews (SME-AIME Fall Meeting, 1974, Preprint 74-B-328) and was acquired by Occidental in 1977. The firm has continued development of the process since its acquisition.