Process for cleaning a cold trap

Details Process for cleaning a cold trap Process for cleaning a cold trap

1979-11-14

1981-09-22

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including work heating or contact with combustion products

134 22R, 176 37, B08B 308, B08B 310

Patent

active

042908221

ABSTRACT:
A cold trap incorporated into a liquid metal circuit is cleaned by introducing an alkali metal hydroxide in liquid state into the trap and in excess compared with solubility limits of deposited impurities, then heating the trap to totally transform the impurities into liquid phases and draining off these liquid phases. The cleaning operation is carried out in the absence of water.

REFERENCES:
patent: 3831912 (1974-08-01), Shimoyashiki et al.
patent: 3941586 (1976-03-01), McKee

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