How to make nitrogen in industry

Industrial nitrogen production adopts liquid air separation method, which uses the different boiling points of each air to separate oxygen and nitrogen.

Although nitrogen is more abundant in the atmosphere than oxygen, people don't know nitrogen until they know oxygen because of its inert nature. But it was discovered before oxygen. Shortly after British chemist Braque discovered carbonic acid gas in 1755, he found that a large amount of air remained in the carbonic acid gas produced by burning charcoal in a glass cover, that is, after it was absorbed by caustic potash solution.

Later, his student D. Rutherford continued to do experiments with animals, put the mouse in a closed glass cover until it died, and found that the air volume in the glass cover decreased110; If the residual gas is absorbed by caustic potash solution, the volume of111will continue to decrease.

Extended data

Matters needing attention in industrial production of nitrogen;

1, the safety helmet on the gas cylinder must be worn when transporting the gas cylinder.

2. When the gas cylinder is laid flat, it should be in the same direction as the bottle body, and do not cross.

3. The height shall not exceed the vehicle guardrail, and it shall be fastened with triangular wooden mats to prevent rolling.

4. It is forbidden to transport with flammable or combustible materials.

5, closed operation, provide good natural ventilation conditions.

6, the operator must undergo special training, strictly abide by the operating procedures.

7. Prevent the gas in the workplace from leaking into the air.

8. Handle with care when handling to prevent damage to gas cylinders and accessories.

9, equipped with leakage emergency treatment equipment.

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