실제로 이동하는 것
Kazakh uranium is dissolved underground and pumped up as a solution — nothing is blasted and no waste rock is moved. It then passes through conversion, enrichment and fuel fabrication, each of which exists in only a handful of countries and each of which is under international safeguards.
- 소재
- Uranium
- 유형
- Sandstone-hosted uranium recovered in situ, no rock moved at all
- 출발지
- Kazakhstan — Wellfields on the Chu-Sarysu and Syrdarya basins
단계별, 국경별
Kazakhstan · Southern Kazakhstan wellfields 보유자 Kazatomprom and joint ventures (국영 생산자)
Mining without a mine
A mildly acidic solution is injected through wells into the ore-bearing sandstone, dissolves the uranium, and is pumped back to surface through recovery wells. There is no pit, no shaft and no tailings dam.
왜 이곳인가: In-situ recovery only works in permeable, water-saturated sandstone with the right chemistry. Kazakhstan has an unusual amount of it, which is why it became the largest producer.
Kazakhstan · Central processing plant 보유자 Kazatomprom (국영 생산자)
Yellowcake
The uranium is stripped from solution onto resin, eluted and precipitated as U3O8 — a yellow-brown powder — then dried and drummed.
나머지는 어떻게 되었는가: Note the units. 200 tU is 236 t U3O8 — mixing tonnes of uranium with tonnes of oxide is the classic error in this industry's reporting.
왜 이곳인가: Concentrating before transport, and before the safeguards paperwork gets heavier.
Canada · Conversion facility 보유자 Converter (정련업체)
Conversion to a gas
Yellowcake is purified and converted to uranium hexafluoride, which becomes a gas just above room temperature — the only practical form for enrichment.
나머지는 어떻게 되었는가: The fluorine comes from fluorspar. A mineral most people have never heard of is a precondition for nuclear fuel.
왜 이곳인가: Only a handful of commercial conversion plants exist worldwide. This is a genuine bottleneck.
France · Centrifuge plant 보유자 Enricher (정련업체)
Enrichment
Thousands of centrifuges in cascade separate uranium-235 from uranium-238 by mass, raising the fissile fraction from 0.7% to 3–5%. Most of the feed leaves as depleted tails.
나머지는 어떻게 되었는가: The great majority becomes depleted uranium — used for radiation shielding, ballast and armour, and otherwise stored.
왜 이곳인가: Enrichment is dual-use. Where it exists is a matter of treaty and politics as much as engineering.
France · Fuel fabrication plant 보유자 Fuel fabricator (제조사)
Pellets and rods
Converted to uranium dioxide powder, pressed into ceramic pellets the size of a fingertip, sintered, ground to tolerance and sealed into zirconium alloy tubes bundled into assemblies.
왜 이곳인가: The cladding is zirconium with the hafnium removed — two chemically near-identical metals that had to be separated for this to work at all.
France · Reactor 보유자 Utility (최종 사용자)
About a year of electricity
Loaded into the core. One pellet holds roughly the energy of a tonne of coal. A large reactor's annual load fits in a few shipping containers.
왜 이곳인가: Four countries, and every gram inventoried at every handover.
이것은 작업 예시이다. 공표된 출발 수량을 공표된 일반적인 수율 및 회수율에 따라 추적한 것이므로 비율은 검증 가능하다. 특정 선적 기록이 아니다. 경로 사실—어느 나라, 어떤 공정, 그리고 왜 해당 소재를 다른 곳에서 처리할 수 없는지—은 공개 보고를 바탕으로 정리되었다.