If the air is made out of nitrogen, how do we obtain nitrogen? What about other gases like argon?

Question

The atmosphere is made out of over 75% nitrogen. My question is how do humans obtain this nitrogen.

Answer 1

One chills and compresses air until it liquefies. Then one heats liquid air slowly until ntrogen boils, condenses, and is collected. Argon boils next, followed by oxygen, from which one gets liquid oxygen. There are several other inert gases in air, such as neon, kypton, and xenon. Liquid nitrogen plants are quite common everywhere in the U.S. People combine nitrogen with hydrogen by the Haber-Bosch prosch process to make anhydrous (liquid) ammonia for fertilizer.

Answer 2

When the air is cooled, the gases can be separated. This is true for Nitrogen, Oxygen, Argon and even Carbon dioxide.

Air is first cooled an placed under pressure until it becomes a liquid. The temperature is carefully allowed to rise and the different gases separate and are collected into storage tanks.

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Answer 3

Air is a mixture of mainly, Nitrogen (78%), Oxygen (21%), with a very small amount of Argon (0.9%), plus traces of other gases.
All components of the air can be extracted by compression, expansion and cooling to produce Liquid Air at -194°C.
This is then separated into its component parts by fractional distillation of the liquid.

Answer 4

like breathing in? just breathe it out. we don't use nitrogen. the reason we use oxygen is because of the metabolic pathway. oxygen accept 2 hydrogens atoms to make water as the end product.

argon doesn't even react with anything except HF at extremely low temperature.