Elements and Compounds
What is the process used to extract lead from the earth?
Asked in Example Sentences
How do you use word extract in a sentence?
The process used to extract oil from the oil sands in northern Canada is very costly. - Extract is a verb that means "To remove or take out by special means or by force." I use vanilla and orange extract when I bake a cake. - Extract is a noun: To withdraw (as a juice or fraction) by physical or chemical process
Asked in Elements and Compounds
How is magnesium extracted from the ground?
Magnesium exists in several useful minerals in the Earth, of which Dolomite and Bauxite are two. In recent years, China has become the dominant supplier on world markets, (60%) and they use a silicon reduction process (Pidgeon process) for refining. In the US, an electrolytic process is used. Simple quarrying machinery is used to extract the above ores from the ground.
Asked in Chemistry
How is lead extracted from the earth?
he electrolyte for this process is a mixture of lead fluorosilicate (PbSiF6) and hexafluorosilicic acid (H2SiF6) heated to 45°C. Cathodes are thin sheets of pure lead and anodes are cast from the impure lead to be purified. A potential of 0.5 volts is applied. At the anode, lead goes into solution, as do metal impurities that are less noble than lead. Impurities that are more noble than lead, such as silver, gold, and bismuth, flake from the anode as it dissolves and settle to the bottom of the vessel as "anode mud." Pure metallic lead plates onto the cathode, with the less noble metals remaining in solution. Because of the high cost of electrolysis, this process is used only when very pure lead is needed. Otherwise the Parkes process followed by the Betterton-Kroll process are used to purify lead.
Asked in Example Sentences
How do you put the word extract in a sentence?
Asked in Database Programming, Windows Server 2003
Which SQL statement is used to extract data from a database?
Asked in Mining, Metal and Alloys
Why is it sometimes not economically viable to extract a metal?
What is a seaweed extract starting with AG?
Asked in Coal (fuel source)
What is the method used to extract shallow deposits of coal from the earth?
Asked in Energy
What process is used for the sun's heat energy to reach Earth?
Asked in Food & Cooking
What are the uses of ORe?
Ore, as in rocks which contain sufficient metal to extract and it is economical to do so. Ores include bauxite, a copper ore. Ores can be used to extract precious metals which in turn can be used for electrical wiring, in the case of copper or as a catalyst, in the case of Haematite, Iron ore (the haber process).