Font size
WorksheetsNuclear Lifecycle 2
Total questions: 10
Worksheet time: 9mins
Which of these is NOT a method of SORTING uranium ore?
Radiometric sorting
Photometric sorting
Magnetic sorting
Flotation
Roasting
Match the description to the correct process.
A resin is used to selectively adsorb the uranyl ions
A complexing agent in an organic phase is used to selectively extract the uranyl ions
Cannot be used if chloride concentrations are above 6g/L
Must be used if chloride concentrations are above 6g/L
Cheaper
Generates organic waste which is difficult to dispose of
In both IX and SX what is used to neutralise the solution after the process?
Gaseous ammonia
Sulphuric acid
Which milling technique involves removal of uranium mineral coating from sand?
Ablation
Put these milling steps in order.
Ore is gathered and screened.
Ore is crushed and mixed with H2SO4.
Tailings are left to settle out. and the solution is filtered.
IX or SX
The U is stripped, precipitated and dried.
What is the common name for U3O8?
Greencake
Yellowcake
Bluecake
Redcake
Which of these is an example of an indirect cost?
Changing interest rates on loans
Labour
Construction costs
Decommissioning
Which of these methods can be used to remove impurities in U?
Flotation
Roasting
Solvent extraction
Ion exchange
How are ISL mines decommissioned?
Wells are capped
Groundwater is treated/left to return to its original condition
Water from the tailings dam is evaporated
Chemicals are recycled
Why is UO2 oxidised to UO3 for IX or SX?
UO2 is not soluble in acid
UO2 is too radioactive
UO3 is an alkali
UO2 is more electronegative
