First of all, I will talk about

First of all, I will talk about (natural uranium), this is the only element to the side (thorium), producing nuclear energy, which includes atoms called (isotopes), present different Bechtel, composed of two elements: uranium * 238 * 235 and uranium. Uranium enrichment: Access to depleted uranium and enriched uranium are not only the separation of uranium isotopes and isolate the component, and other isotopes focus more of our consists saturated desired isotope material. And the purity of uranium enrichment required ratio not only completed in several phases isolate isotopes undesirable where larger quantities. Due to the high similarity between the isotopes of unwanted uranium isotopes and unwanted, which works to remove them in terms of weight, the cost of the enrichment process is too high and where many difficulties. And The enrichment process using a gas or liquid to get the right temperature, which is isolating isotopes unwanted, because the method of using electromagnetic radiation, and also laser, inadequate, but it is very complex way. Natural uranium ratios: and we must know the proportion of the presence of natural uranium as Mojo in Mother Nature, and are: U-238: rate of 99.3% in nature. U-235: rate of 0.7% in nature. Other isotopes: increase of 0.01% in nature. The process of uranium enrichment: As we have said previously, that the enrichment process is not only the separation of uranium 238 and 238, through the gas centrifuges for uranium, is up feeding of the drum roller, where the spin rapidly due to uranium hexafluoride gas. And displays of uranium Duane speeds ranging from 50 to 70 thousand cycles per minute, after we go to a gas centrifuge his condition. Accumulate on the walls of the cylinder 238 uranium particles, being heavier, falling a uranium enrichment least. And clustered close to the center of the cylinder uranium particles 235 being the lightest, moving higher. And from the first roller pulls enriched uranium 235, and sends to the second disc centrifuge, and as a result of the passage of the gas in the cylinder several centrifuges, rising and increasingly greater proportion of uranium enrichment. Uses enriched uranium: used in nuclear bombs, where 90% U-235 enrichment ratio is high. Is used as fuel in nuclear reactors, where it is 5% U-235 enrichment ratio is sufficient. And if one nuclear bomb, we need to just a year and for 1500 of centrifuges, to be produced quantity of uranium, sufficient to manufacture. Because enrichment in the nuclear weapons be too high, the element uranium 235 is the most viable elements and fission explosion. Sources: Nate island. Wikipedia the free encyclopedia