Cadmium extraction rate for the world and Verhulst function fits to the data.
L. David Roper
http://arts.bev.net/RoperLDavid/
21 December 2007
Cadmium is used in batteries, paints and plastics. The graph below shows the antimony extraction data for the world and two Verhulst function fits to the data in order to extrapolate into the future.
Cadmium extraction rate for the world and Verhulst function fits to the data.
The red curve is a fit with total amount to be extracted of 2600x103 tonnes and the blue curve is for a fit with twice that amount.