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Nitric Acid Purification System

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The process to purify industrial/technical grade nitric acid involves a single stage distillation to leave non- volatile impurities in the still bottoms. 69% – 70% concentrated nitric fluid is delivered by means of a metering pump from a storage tank into the glass still which is equipped with Electrically heated Oil Bath. The acid vapors flow through a mist removing packed section to the Glass condenser. Depending on the desired concentration high pure water can be added as a diluent to the condensed product before entering the bleach column. Clean air is introduced at the base of the bleacher. Air and oxides of nitrogen are vented through a condenser to a scrubber. Entrained nitric acid is not returned to the bleaching column but collected separately. Removing of all NOx out of electronic grade nitric acid

Design Basis & Requirement of Utilities :

 

Capacity

40

kg/hr

Commercial grade
Nitric Acid – 69-70%

44

kg/hr

Electric Heater

48

kw

Cooling Water @ 7 deg. C*

4-5

Cu.M/hr

Space Requirement

3 x 3 x 8 m

 

 

Column Section With Inbuilt Packing Support

HCL Purification System
Nitric Acid Purification System
HCL Adiabatic Absorption
Essential Oil Distillers