isolation of elements in chemistry class 12 aims to teach the students about various processes of extraction of metals from ores. very few metals such as the noble metals, i.e., gold, silver, and platinum etc. are present in their original metallic forms in nature.
this page looks at the various factors which influence the choice of method for extracting metals from their ores, including reduction by carbon, reduction by a reactive metal (like sodium or magnesium), and by electrolysis. details for the extraction of aluminum, copper, iron and titanium are given in separate pages in this section.
the reactivity series shows metals in order of reactivity. the reactivity of a metal can be worked out by studying its reactions. iron and aluminium are extracted from their ores in different ways.
iron and aluminium are extracted from their ores in different ways because the metals have different reactivities. metals are used for different purposes, depending on their properties.
small-scale recycling of e-waste can have advantages — less energy may be used to extract precious metals from junked components than to mine new ore, and low-skilled workers can find employment.
selling old pc's vs. stripping precious metal by jimmy-jam · 10 years ago i have recently come into a bunch of old dell precision workstations from and upgrade/install.
it is very hard to imagine a life without metals.before we start to discuss how to obtain metals from their ores, we are going to learn about their uses first. you would be more interested to know how industries extract metals once you are aware of their importance.
Environmental Protection and Health One
LUM is of little dust and noise, achieving Environmental Protection Request, it is quite environmentally friendly
To Improve the Purity Two
Low investment cost: LUM use PLC/DCS automatic control system, well save the cost of operators.
High Efficiency Three
LUM has excellent grinding-efficiency for the special design of roller shell and grinding plate curve.
Low Cost Four
Utilize advanced working principle and reduce the grinding time, as a result, the final products has little iron and the whiteness and purity are raised.