Cold trap for eliminating impurities from a polluted liquid meta

Details Cold trap for eliminating impurities from a polluted liquid meta Cold trap for eliminating impurities from a polluted liquid meta

1986-07-30

1987-09-15

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

55269, 165119, 210186, B01D 800

Patent

active

046930884

ABSTRACT:
Cold trap for eliminating the impurities present in a polluted liquid metal. It comprises a body provided with an intake pipe for the polluted liquid metal and an internal structure defining a passage for the metal, said structure being successively provided with means for cooling the liquid so that it can be cooled to a cold point temperature below the impurity saturation temperature and bring about a crystallization of the impurities, means for retaining the impurities and a discharge pipe for discharging from the body the impurity-free metal and means for reinjecting upstream of the cooling means part of the fluid which has passed through the impurity retention means. Application to liquid metal-cooled nuclear reactors.

REFERENCES:
patent: 3552485 (1971-01-01), Le Jannou et al.
patent: 4278499 (1981-07-01), Abramson et al.
patent: 4432208 (1984-02-01), Onuki et al.
patent: 4488964 (1984-12-01), Mitsutsuka

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