Process and apparatus for preparation of finely grained lead azi

Details Process and apparatus for preparation of finely grained lead azi Process and apparatus for preparation of finely grained lead azi

1989-07-17

1990-09-04

Stoll, Robert L.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Binary compound

422135, 422226, C01B 2108

Patent

active

049543296

ABSTRACT:
The invention provides a process for the preparation of finely grained lead azide, in which aqueous solutions of lead nitrate and sodium azide are stirred in a vessel at constant temperature, characterized in that in a first process step the aqueous solution of lead nitrate and a small amount of an aqueous solution of sodium citrate are poured into the vessel, in a second process step, the aqueous solution of sodium azide is dosed into the vessel over a period of time of 30 to 40 minutes, the aqueous solutions poured into the vessel are agitated at a peripheral stirring speed of between 0.2 m/sec and 1.0 m/sec., and the constant temperature is set to a value of 50.degree. C. to 80.degree. C.

REFERENCES:
patent: 1353805 (1920-09-01), Snelling
patent: 1914530 (1933-06-01), Rinkenbach
patent: 2421778 (1947-06-01), Fleischer et al.
patent: 3264150 (1966-08-01), Leslie
patent: 3361602 (1968-01-01), Leslie

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