Arlit and Akouta;
The uranium used for the atomic bomb was primarily sourced from the Congo and later from mines in the US. The uranium ore was then processed to extract the isotope U-235 necessary for nuclear fission to create the bomb.
No, iron ore and uranium ore are two different types of ores. Iron ore is a mineral that is a source of iron while uranium ore is a mineral that contains uranium, a radioactive element used for nuclear energy production.
Your Mother
Nuclear material for nuclear reactors are usually obtained from uranium. Uranium is obtained from uranium mines (open pit or underground mines) the same way mining for other minerals. Uranium then passes through different processes until getting it in a suitable form for fabrication into nuclear fuel.
Yes, uranium ores are available in many countries.
most uranium ever produced came from the mines in the Republic of Congo. Plutonium and uranium bombs thrown in japan in the second world war proceeded from such country. obtaining yellow cake to enrich for nuclear purposes, is quite a process. The basic ore is stracted from dirt coming from the mines. This means a lot of dirt must be extracted from the mine in order to produce an onz of ore.
Either yellow uranium oxide (yellowcake) or metallic uranium in most reactors. In moderated thermal neutron reactors the uranium is usually enriched to 3% to 5% uranium-235 isotope, in unmoderated fast neutron reactors the uranium is enriched to 20% to 95% uranium-235 isotope. This uranium comes from mines (similar to coal or iron ore mines). What is mined is usually black uranium oxide ore. This ore is processed to make unenriched yellowcake (0.7% uranium-235) and shipped to the enrichment plant. Most enrichment plants process the yellowcake to make uranium hexafloride then run that through their system, producing both enriched uranium (product) and depleted uranium (waste). The enriched uranium hexafloride is then processed back to yellowcake and shipped to a finishing plant that uses it to make the required fuel assemblies.
Some uranium mines in Argentina: Cachocira and Engenlio; in the past Don Otto.
Bauxite (aluminum ore). Guinea also mines iron, gold, diamonds, and uranium.
Mining operations are generally fairly expensive, regardless of the material being mined. Most uranium is mined in Kazakhstan, Canada, Australia, Namibia, Russia and Niger. The cost of recovering the ore is something on the order of $60 US per ton of ore. But that's just a ball park figure.The concentrations of uranium in ore can vary, as can labor and other fixed costs associated with removing material from the ground. This makes some mining operations more economical than others, as you'd expect. The variables are concentration of the metal in ore bodies, labor, transportation, and chemical and processing costs.Canada is a close trading partner with the U.S., and the uranium oxides in ores there are concentrated more than most other places on earth. That generally makes it cheaper to mine uranium in Canada than in, say, Niger. The higher concentration of uranium oxides in Canadian ore offset and outstrip the lower labor costs in Niger. The question of concentration is probably the one that has the most effect on the actual cost per kilogram of yellowcake, which is uranium oxide at a concentration of something on the order of 75% or so. That's what the mines and point-of-extraction processing facilities deliver, generally speaking. Further refining and processing is required to win the pure metal, naturally, and all that comes at some additional cost.
An important ore of uranium is called Pitchblende.
Mainly because only about 0.7% of uranium is the isotope uranium-235, which is easily fissionable. It is believed that in Earth's remote past, there were such chain reactions - natural reactors - at a time when the percentage of U-235 was higher.