Raczynski process

The distinctive feature of the process invented by Raczynski [411 is exact metering of mixed acid and glycerine by means of automatic mechanical devices. 

The nitrating add is metered by means of tipping vessel fixed on a horizontal shaft (Fig. 45a). 

Acid flows into the vessel (1) from a pipe ending inside a container constructed of add-resistant steel or lead, in which the tipping vessel is located. The stream of add fills the vessel, and as a determined weight is reached it tips over and another 

Glycerine is metered by means of a bucket conveyer (Fig. 45b) driven by hydraulic turbine. 

The arrangements for introducing measured quantities of acid and glycerine are connected by a lever (2) in such a way that the influx of acid and nitroglycerine into the nitrator proceeds at a pre-determined ratio. Movement of the tipping vessel exerts a pull on the lever and this takes the brakes off the bucket conveyer. At once the conveyer starts to move and continues to do so until the acid metering vessel returns the lever to its former position and stops the conveyer again. 

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Raczynski Process. A continuous process for manufg NG, invented by Raczynski in 1935 (Ref 1), the distinctive feature of which is exact metering of mixed acid and glycerine by means of automatic mechanical devices (also see under Continuous Methods for Manufacturing Explosives in Vol 3, C501-L to C504-R)... 

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