Nomograph for in-situ uranium leaching

This nomograph provides a fast, convenient method for estimating production at an in-situ uranium leaching operation. It has been designed to permit quick calculation of the recovery rate of uranium oxide (lb per year) for various mill throughput rates (gpm) and pregnant solution strengths (ppM U3O8), or vice versa. Each of the variables is expressed in the units of measure commonly used in the uranium industry. Using known or estimated values for any two of the variables, the third value can be read from the graph with the aid of a straightedge. The nomograph sheds some light on the sensitivity of production to changes in uranium concentration in pregnant feed obtained by in-situ leaching