2024年1月5日 · Drying of nitric acid with magnesium nitrate Found this method of drying nitric acid. Below is a description and both diagrams. "Dilute nitric acid is introduced into evaporation column 1 and an 80% solution of magnesium nitrate is fed from Vacuum Evaporator 6.

The nitric acid is concentrated by distillation and the sulfuric acid (that acts as a dehydrating agent) is cooled, stored and then processed to make concentrated sulfuric acid that is then mixed with the concentrated nitric acid to make a fortifying acid (about 1 part nitric acid to 3 parts sulfuric acid by weight) for the nitration process.

The process of concentrating nitric acid, which comprises producing vapors of relatively dilute nitric acid, passing said vapors into one end of a suitable drying apparatus and causing them to...

2005年6月1日 · In order to control the processing and yield of plant, the material, energy balances become fundamental. This paper discusses production of 130 metric tons concentrated nitric acid using...

2021年7月1日 · To enhance understanding of the nitric acid (HNO 3) dry deposition process that largely contributes to the total nitrogen deposition, we associate this process with the equilibrium shift of ammonium nitrate (NH 4 NO 3) to HNO 3 and ammonia (NH 3) near the surface.

This paper discusses two different types of techniques i.e. Non-Selective Catalytic reduction and Selective Catalytic Reduction and their role in nitric acid plant. This paper also emphasizes upon the Nitric Acids Pressure plants i.e. Single Pressure Plant and Dual Pressure Plant.

Process: Air is blown into an electric arc established between two water cooled copper electrodes and spread into a disc with the help of a strong magnetic field applied at right angles (Fig.). The electric arc produces a temperature of about 3000°C. Nitrogen …

Ostwald Process for Making Nitric Acid Step 1 – Catalytic Oxidation Reaction Primary Oxidation (Formation of Nitric Acid) The main goal of this process is the conversion of ammonia into nitric acid. The process begins in a catalyst chamber, where one ammonia part and eight oxygen parts are introduced by volume.

2020年6月1日 · Preparation of 98% nitric acid : For the preparation of conc. HNO 3, it is treated with conc. H 2 SO 4, which acts as dehydrating agent. So it absorbs water molecules strongly. …

2024年7月30日 · The process works by using nitric acid to create a protective oxide layer on the metal’s surface so that it’s less likely to react to the air and corrode. At Advanced Deburring & Finishing, we have nitric acid passivation equipment to …