I.0A.002 | ex 0B001*
(0B001.a, 0B001.b.1-13, 0B001.c, 0B001.d 0B001.e 0B001.f 0B001.g 0B001.h 0B001.i and 0B001.j)
| Plant for the separation of isotopes of ‘ natural uranium ’ , ‘ depleted uranium ’ and ‘ special fissile materials ’ , and specially designed or prepared equipment and components therefor, as follows:
Plant specially designed for separating isotopes of ‘ natural uranium ’ , ‘ depleted uranium ’ , and ‘ special fissile materials ’ , as follows:
1. Gas centrifuge separation plant;
2. Gaseous diffusion separation plant;
3. Aerodynamic separation plant;
4. Chemical exchange separation plant;
5. Ion-exchange separation plant;
6. Atomic vapour ‘ laser ’ isotope separation (AVLIS) plant;
7. Molecular ‘ laser ’ isotope separation (MLIS) plant;
8. Plasma separation plant;
9. Electro magnetic separation plant;
Gas centrifuges and assemblies and components, specially designed or prepared for gas centrifuge separation process, as follows:
Note: In I.0A.002.b. ‘high strength-to-density ratio material’ means any of the following:
a. Maraging steel capable of an ultimate tensile strength of 2 050 MPa or more;
b. Aluminium alloys capable of an ultimate tensile strength of 460 MPa or more; or
c. ‘Fibrous or filamentary materials’ with a ‘specific modulus’ of more than 3,18 × 10 6 m and a ‘specific tensile strength’ greater than 76,2 × 10 3 m ;
2. Complete rotor assemblies;
3. Rotor tube cylinders with a wall thickness of 12 mm or less, a diameter of between 75 mm and 400 mm, made from ‘ high strength-to-density ratio materials ’ ;
4. Rings or bellows with a wall thickness of 3 mm or less and a diameter of between 75 mm and 400 mm and designed to give local support to a rotor tube or to join a number together, made from ‘ high strength-to-density ratio materials ’ ;
5. Baffles of between 75 mm and 400 mm diameter for mounting inside a rotor tube, made from ‘ high strength-to-density ratio materials ’ ;
6. Top or bottom caps of between 75 mm and 400 mm diameter to fit the ends of a rotor tube, made from ‘ high strength-to-density ratio materials ’ ;
7. Magnetic suspension bearings consisting of an annular magnet suspended within a housing made of or protected by ‘materials resistant to corrosion by UF 6 ’ containing a damping medium and having the magnet coupling with a pole piece or second magnet fitted to the top cap of the rotor;
8. Specially prepared bearings comprising a pivot-cup assembly mounted on a damper;
9. Molecular pumps comprised of cylinders having internally machined or extruded helical grooves and internally machined bores;
10. Ring-shaped motor stators for multiphase AC hysteresis (or reluctance) motors for synchronous operation within a vacuum in the frequency range of 600 to 2 000 Hz and a power range of 50 to 1 000 Volt-Amps;
11. Centrifuge housing/recipients to contain the rotor tube assembly of a gas centrifuge, consisting of a rigid cylinder of wall thickness up to 30 mm with precision machined ends and made of or protected by ‘materials resistant to corrosion by UF 6 ’;
12. Scoops consisting of tubes of up to 12 mm internal diameter for the extraction of UF 6 gas from within a centrifuge rotor tube by a Pitot tube action, made of or protected by ‘materials resistant to corrosion by UF 6 ’;
13. Frequency changers (converters or inverters) specially designed or prepared to supply motor stators for gas centrifuge enrichment, having all of the following characteristics, and specially designed components therefor:
a. Multiphase output of 600 to 2 000 Hz;
b. Frequency control better than 0,1 %;
c. Harmonic distortion of less than 2 %; and
d. An efficiency greater than 80 %;
Equipment and components, specially designed or prepared for gaseous diffusion separation process, as follows:
1. Gaseous diffusion barriers made of porous metallic, polymer or ceramic ‘materials resistant to corrosion by UF 6 ’ with a pore size of 10 to 100 nm, a thickness of 5 mm or less, and, for tubular forms, a diameter of 25 mm or less;
2. Gaseous diffuser housings made of or protected by ‘materials resistant to corrosion by UF 6 ’;
3. Compressors (positive displacement, centrifugal and axial flow types) or gas blowers with a suction volume capacity of 1 m 3 /min or more of UF 6 , and discharge pressure up to 666,7 kPa, made of or protected by ‘materials resistant to corrosion by UF 6 ’;
4. Rotary shaft seals for compressors or blowers specified in I.0A.002.c.3. and designed for a buffer gas in-leakage rate of less than 1 000 cm 3 /min.;
5. Heat exchangers made of aluminium, copper, nickel, or alloys containing more than 60 per cent nickel, or combinations of these metals as clad tubes, designed to operate at sub-atmospheric pressure with a leak rate that limits the pressure rise to less than 10 Pa per hour under a pressure differential of 100 kPa;
6. Bellow valves made of or protected by ‘materials resistant to corrosion by UF 6 ’, with a diameter of 40 mm to 1 500 mm;
Equipment and components, specially designed or prepared for aerodynamic separation process, as follows:
1. Separation nozzles consisting of slit-shaped, curved channels having a radius of curvature less than 1 mm, resistant to corrosion by UF 6 , and having a knife-edge contained within the nozzle which separates the gas flowing through the nozzle into two streams;
2. Tangential inlet flow-driven cylindrical or conical tubes, (vortex tubes), made of or protected by ‘materials resistant to corrosion by UF 6 ’ with a diameter of between 0,5 cm and 4 cm and a length to diameter ratio of 20:1 or less and with one or more tangential inlets;
3. Compressors (positive displacement, centrifugal and axial flow types) or gas blowers with a suction volume capacity of 2 m 3 /min or more, made of or protected by ‘materials resistant to corrosion by UF 6 ’, and rotary shaft seals therefor;
4. Heat exchangers made of or protected by ‘materials resistant to corrosion by UF 6 ’;
5. Aerodynamic separation element housings, made of or protected by ‘materials resistant to corrosion by UF 6 ’ to contain vortex tubes or separation nozzles;
6. Bellows valves made of or protected by ‘materials resistant to corrosion by UF 6 ’, with a diameter of 40 to 1 500 mm;
7. Process systems for separating UF 6 from carrier gas (hydrogen or helium) to 1 ppm UF 6 content or less, including:
a. Cryogenic heat exchangers and cryoseparators capable of temperatures of 153 K (– 120 °C) or less;
b. Cryogenic refrigeration units capable of temperatures of 153 K (– 120 °C) or less;
c. Separation nozzle or vortex tube units for the separation of UF 6 from carrier gas;
d. UF 6 cold traps capable of temperatures of 253 K (– 20 °C) or less;
Equipment and components, specially designed or prepared for chemical exchange separation process, as follows:
1. Fast-exchange liquid-liquid pulse columns with stage residence time of 30 seconds or less and resistant to concentrated hydrochloric acid (e.g. made of or protected by suitable plastic materials such as fluorocarbon polymers or glass);
2. Fast-exchange liquid-liquid centrifugal contactors with stage residence time of 30 seconds or less and resistant to concentrated hydrochloric acid (e.g. made of or protected by suitable plastic materials such as fluorocarbon polymers or glass);
3. Electrochemical reduction cells resistant to concentrated hydrochloric acid solutions, for reduction of uranium from one valence state to another;
4. Electrochemical reduction cells feed equipment to take U +4 from the organic stream and, for those parts in contact with the process stream, made of or protected by suitable materials (e.g. glass, fluorocarbon polymers, polyphenyl sulphate, polyether sulfone and resin-impregnated graphite);
5. Feed preparation systems for producing high purity uranium chloride solution consisting of dissolution, solvent extraction and/or ion exchange equipment for purification and electrolytic cells for reducing the uranium U +6 or U +4 to U +3 ;
6. Uranium oxidation systems for oxidation of U +3 to U +4 ;
Equipment and components, specially designed or prepared for ion-exchange separation process, as follows:
1. Fast reacting ion-exchange resins, pellicular or porous macro-reticulated resins in which the active chemical exchange groups are limited to a coating on the surface of an inactive porous support structure, and other composite structures in any suitable form, including particles or fibres, with diameters of 0,2 mm or less, resistant to concentrated hydrochloric acid and designed to have an exchange rate half time of less than 10 seconds and capable of operating at temperatures in the range of 373 K (100 °C) to 473 K (200 °C);
2. ion-exchange columns (cylindrical) with a diameter greater than 1 000 mm, made of or protected by materials resistant to concentrated hydrochloric acid (e.g. titanium or fluorocarbon plastics) and capable of operating at temperatures in the range of 373 K (100 °C) to 473 K (200 °C) and pressures above 0,7 MPa;
3. ion-exchange reflux systems (chemical or electrochemical oxidation or reduction systems) for regeneration of the chemical reducing or oxidizing agents used in ion-exchange enrichment cascades;
Equipment and components, specially designed or prepared for atomic vapour ‘ laser ’ isotope separation process (AVLIS), as follows:
1. High power strip or scanning electron beam guns with a delivered power of more than 2,5 kW/cm for use in uranium vaporization systems;
2. Liquid uranium metal handling systems for molten uranium or uranium alloys, consisting of crucibles, made of or protected by suitable corrosion and heat resistant materials (e.g. tantalum, yttria-coated graphite, graphite coated with other rare earth oxides or mixtures thereof), and cooling equipment for the crucibles;
N.B.: See also I.2A.002.
3. Product and tails collector systems made of or lined with materials resistant to the heat and corrosion of uranium metal vapour or liquid, such as yttria-coated graphite or tantalum;
4. Separator module housings (cylindrical or rectangular vessels) for containing the uranium metal vapour source, the electron beam gun and the product and tails collectors;
5. ‘ Lasers ’ or ‘ laser ’ systems for the separation of uranium isotopes with a spectrum frequency stabiliser for operation over extended periods of time;
N.B.: See also I.6A.001 and I.6A.008.
Equipment and components, specially designed or prepared for molecular ‘ laser ’ isotope separation process (MLIS) or chemical reaction by isotope selective laser activation (CRISLA), as follows:
1. Supersonic expansion nozzles for cooling mixtures of UF 6 and carrier gas to 150 K (– 123 °C) or less and made from ‘materials resistant to corrosion by UF 6 ’;
2. Uranium pentafluoride (UF 5 ) product collectors consisting of filter, impact, or cyclone type collectors or combinations thereof, and made of ‘materials resistant to corrosion by UF 5 /UF 6 ’;
3. Compressors made of or protected by ‘materials resistant to corrosion by UF 6 ’, and rotary shaft seals therefor;
4. Equipment for fluorinating UF 5 (solid) to UF 6 (gas);
5. Process systems for separating UF 6 from carrier gas (e.g. nitrogen or argon) including:
a. Cryogenic heat exchangers and cryoseparators capable of temperatures of 153 K (– 120 °C) or less;
b. Cryogenic refrigeration units capable of temperatures of 153 K (– 120 °C) or less;
c. UF 6 cold traps capable of temperatures of 253 K (– 20 °C) or less;
6. ‘ Lasers ’ or ‘ laser ’ systems for the separation of uranium isotopes with a spectrum frequency stabiliser for operation over extended periods of time;
N.B.: See also I.6A.001 and I.6A.008.
Equipment and components, specially designed or prepared for plasma separation process, as follows:
1. Microwave power sources and antennae for producing or accelerating ions, with an output frequency greater than 30 GHz and mean power output greater than 50 kW;
2. radio-frequency ion excitation coils for frequencies of more than 100 kHz and capable of handling more than 40 kW mean power;
3. Uranium plasma generation systems;
4. Liquid metal handling systems for molten uranium or uranium alloys, consisting of crucibles, made of or protected by suitable corrosion and heat resistant materials (e.g. tantalum, yttria-coated graphite, graphite coated with other rare earth oxides or mixtures thereof), and cooling equipment for the crucibles;
N.B.: See also I.2A.002.
5. Product and tails collectors made of or protected by materials resistant to the heat and corrosion of uranium vapour such as yttria-coated graphite or tantalum;
6. Separator module housings (cylindrical) for containing the uranium plasma source, radio-frequency drive coil and the product and tails collectors and made of a suitable non-magnetic material (e.g. stainless steel);
Equipment and components, specially designed or prepared for electromagnetic separation process, as follows:
1. Ion sources, single or multiple, consisting of a vapour source, ioniser, and beam accelerator made of suitable non-magnetic materials (e.g. graphite, stainless steel, or copper) and capable of providing a total ion beam current of 50 mA or greater;
2. Ion collector plates for collection of enriched or depleted uranium ion beams, consisting of two or more slits and pockets and made of suitable non-magnetic materials (e.g. graphite or stainless steel);
3. Vacuum housings for uranium electromagnetic separators made of non-magnetic materials (e.g. stainless steel) and designed to operate at pressures of 0,1 Pa or lower;
4. Magnet pole pieces with a diameter greater than 2 m;
5. High voltage power supplies for ion sources, having all of the following characteristics:
a. Capable of continuous operation;
b. Output voltage of 20 000 V or greater;
c. Output current of 1 A or greater; and
d. Voltage regulation of better than 0,01 % over a period of 8 hours;
N.B.: See also I.3A.006.
6. Magnet power supplies (high power, direct current) having all of the following characteristics:
a. Capable of continuous operation with a current output of 500 A or greater at a voltage of 100 V or greater; and
b. Current or voltage regulation better than 0,01 % over a period of 8 hours.
N.B.: See also I.3A.005.
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