Apparatus for generating a reducing atmosphere for heat-treating

Details Apparatus for generating a reducing atmosphere for heat-treating Apparatus for generating a reducing atmosphere for heat-treating

1977-07-06

1980-08-26

Bashore, S. Leon

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

422111, 422190, 422191, 422189, 422234, B01J 702

Patent

active

042195284

ABSTRACT:
A generator for producing an atmosphere of nitrogen containing hydrogen by racking ammonia and recycling a previously generated atmosphere that already had been used. The atmosphere generated by cracking, and the recovered atmosphere that previously had been used, are subjected in a reactor to a catalytic treatment at a temperature between 0.degree. and 600.degree. C. and then, after passing through a refrigeration arrangement, the resultant atmosphere is prepared for use. As one example the atmosphere is adapted to be used as a protective atmosphere for metallurgical heat-treating furnaces.

REFERENCES:
patent: 2606875 (1952-08-01), Rosenblatt
patent: 2857155 (1958-10-01), Dickey
patent: 3061403 (1962-10-01), Rendos
patent: 3306711 (1967-02-01), Angerhofer
patent: 3997299 (1976-12-01), von Linde

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