Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p54
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 158294–161435

or conical tubes, (vortex tubes), made of or protected by "materials resistant to corrosion by UF6" and with one or more tangential inlets;
                   Note: Vortex tubes may be equipped with nozzle‑type appendages at either or both ends. The feed gas enters the vortex tube tangentially at one end or through swirl vanes or at numerous tangential positions along the periphery of the tube.
3. Compressors or gas blowers made of or protected by "materials resistant to corrosion by UF6" / materials resistant to corrosion by carrier gas (hydrogen or helium) mixture.
4. Heat exchangers made of or protected by "materials resistant to corrosion by UF6";
5. Separation element housings, made of or protected by "materials resistant to corrosion by UF6" to contain vortex tubes or separation nozzles;
6. Bellows‑sealed valves, manual or automated, shut‑off or control, made of or protected by "materials resistant to corrosion by UF6", with a diameter of 40 mm or more;
              7. Process systems for separating UF6 from carrier gas (hydrogen or helium) to 1 ppm UF6 content or less, including:
                  a. Cryogenic heat exchangers and cryoseparators capable of temperatures of 153K (‑120ºC) or less;
                  b. Cryogenic refrigeration units capable of temperatures of 153 K (‑120ºC) or less;
                  c. Separation nozzle or vortex tube units for the separation of UF6 from carrier gas;
                  d. UF6 cold traps capable of freezing out UF6;
              8. Not used;
0. B. 001. e.  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 fluorinated hydrocarbon 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 fluorinated hydrocarbon 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);
0. B. 001. e. 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;
0. B. 001. f. Equipment and components, specially designed or prepared for ion‑exchange separation process, as follows:
1. Fast reacting ion‑exchange resins,