CHM 2353 Lecture Notes - Lecture 1: Bioavailability, Gangue, Iron Gate Pass

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 2353
• Professor: Muralee Murugesu

Document Summary

Mantle contains iron, magnesium, silicon, and oxygen minerals. Desired elements or compounds are extracted and puri ed. Chemical processes are used to convert extracted elements or compound into desired chemical compound. Minerals: solid inorganic substances occurring in nature that have a de nite chemical composition and characteristic crystalline structure. Sul des: copper, silver, nickel, mercury, zinc, lead (ex. Silicates (si + o): aluminum, iron, magnesium, potassium, sodium, calcium (ex. feldspars kalsi3o8) Phosphates: several, calcium is most important (ex. apatites) Rocks: contain mixtures of minerals in varying proportions. Ore: mineral or rock containing a suf ciently high concentration of an element to constitute an economically feasible source from which the elements can be recovered. Bene ciation: getting ore out of ground - open pit or shaft mines. October 2, 2016: break into small pieces, pick out the interesting parts. ): remove everything you don"t want: flotation process: ore is lighter than gangue. Pass crushed ore down and inclined water trough.