Process for continuous production of pure sodium

Details Process for continuous production of pure sodium Process for continuous production of pure sodium

1974-12-30

1977-04-12

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 63, C22B 2700

Patent

active

040173062

ABSTRACT:
The invention relates to a purification process by which sodium of extremely high purity, more especially with a low calcium content, can be obtained from commercial-grade sodium.
The process according to the invention essentially comprises continuously introducing a predetermined quantity of sodium peroxide into a stream of sodium, mixing and subsequently reacting this sodium peroxide with the sodium at a suitable temperature and finally separating the products of the reaction from the sodium by decantation and filtration.
The extremely high-purity sodium thus obtained satisfies in particular the requirements of the atomic industry for its use as a heat-carrying fluid in nuclear reactors of the "breeder" type.

REFERENCES:
patent: 2863757 (1958-12-01), Altimier et al.
patent: 3508907 (1970-04-01), Graff et al.
patent: 3854933 (1974-12-01), Furukawa et al.

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