In many cases non-zinc anodes outperform actual zinc anodes, depending upon the type of metal you need to protect and the nature of the water in which the metal being protected is immersed. It all has to do with the voltage of the anode when referenced against a standard.
Chemical engineers at pharmaceutical manufacturers have the same duties as those of consumer goods manufacturers, but they have additional duties as well. Their focus is on developing new drugs or products to enhance the health of humans and animals.
Pharmaceuticals. Chemical engineers working in the medical field can work on pharmaceuticals or perform research into new medical devices and procedures. A career in pharmaceuticals involves finding new medicines and medical solutions to diseases and other medical conditions.