The process of enriching uranium isotopes Para isolating chemical elements specific Isotope separation of an element for the purpose of increasing the concentration of other isotopes to obtain the substance is saturated with the desired isotope, for example, isolation of specific isotopes of natural uranium for enriched uranium and depleted uranium. The enrichment process at stages where at each stage to isolate larger quantities of isotopes, where they get unwanted element enriched after each stage limit access to the purity required.
For example, enriched uranium is uranium has been increasing the proportion of isotopes of uranium -235 and resolve other isotopes. And the enrichment process, this is difficult and expensive and is difficult to isotopes, which wants to remove uranium is very similar in terms of weight of the isotopes, which wants to keep it and enrichment is the enrichment process using heat via liquid or gas to contribute to the isolation of isotopes spam and there are other ways more complex such as using lasers or X electromagnetism.
Natural uranium
Enrichment is the only component, which can produce nuclear energy, natural uranium contains atoms with different antagonistic called isotopes and are usually found in (uranium 238) and (uranium) 235. The descent follows:
* (238) - 99.3%
* (235) -0.7%
* Other isotopes - 0,01
Stages of uranium extraction
1 - Metal extraction of uranium ore from the mines (about 1-5 kg per tonne), and then purification and conversion.
2 - is a prelude to crush the metal extracted and the resulting yellow powder yellowcake ", which contains 70% of the uranium dioxide - (uranium oxide Centre).
3 - convert uranium oxide (yellowcake) to a gas [[uranium hexafluoride | Hecsa uranium fluoride]
The enrichment process,
1 - Enrichment is the process of separating uranium 238 and uranium 235, and is by gas centrifuge. Where the circuit is fed into the cylinder (centrifuge) - which revolves on a base run by the engine - Hecsa uranium fluoride gas - go uranium in its gaseous state to the centrifuge and turns of 50-70 thousand rpm.
2 - accumulation of the heavier molecules of uranium-238 on the wall of the drum and fall is at least enriched uranium.
3 - gather particles from the lighter U-235 near the center of the cylinder and move up.
4 - This sends the U-235 enriched to a second centrifuge, being fed the next phase gas and then enriched to slightly uranium 235.
5 - Payment will be depleted gas in a light of uranium 235 for feedback to the work of the previous stage.
See: nuclear reactor
Enriched uranium
Enriched uranium is used in the manufacture of nuclear bombs, where you must rise the level of U-235 before it is burned as fuel in nuclear reactors or used to make nuclear weapons.
Nuclear Weapons
During the year of 1500 can be of centrifuges to produce enough highly enriched uranium to produce one nuclear bomb. In the case of nuclear weapons is the level of U-235 above 90% compared with uranium 238 and uranium-235 is so combustible.
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