An experimental device for preparing and purifying CO

Abstract

An experimental device for preparing and purifying and collecting CO, comprising: a heating unit with a heating chamber; a CO generating unit arranged on the heating unit, including a reaction part and a liquid addition part, the reaction part is detachably installed on the upper part of the heating unit, and the reaction The bottom of the reaction part is placed in the heating chamber, the upper part of the reaction part is provided with a sample gas output port, and the upper part of the liquid feeding part is provided with a liquid injection hole; and the gas purification collection unit has a purification chamber, an air inlet pipe connected to the bottom of the purification chamber and an air inlet connected to the bottom of the purification chamber. The product discharge pipe connected to the top of the purification chamber, the upper inlet of the inlet pipe is connected with the gas outlet pipeline of the reaction part, and the lower end outlet of the inlet pipe extends to the bottom of the purification chamber and submerges below the surface of the purified liquid in the purification chamber; the product discharge pipe There is an outlet pipe and a liquid discharge pipe that can be connected with the pipeline of the CO collection device, and the top of the liquid discharge pipe is equipped with a liquid discharge sealing plug. The invention has the beneficial effects of avoiding CO leakage, automatically adjusting the reaction amount of adding formic acid, and stable reaction; the pressure inside the reaction bottle is adjustable, and the device is safe.

Description

technical field [0001] The invention relates to an experimental device for preparing and purifying and collecting CO. Background technique [0002] Carbon monoxide is a colorless, odorless, and water-insoluble toxic gas under normal pressure. It is an important organic chemical raw material. It is a good reducing agent in chemical preparation and metal reduction. It can be used for the preparation of ammonia, phosgene, alcohols, acids, anhydrides, esters, aldehydes, ether amines, alkanes and alkenes, various homogeneous reaction catalysts, and the extraction of high-purity nickel. It is also widely used in pharmaceutical intermediates, standard gas preparation, carbon monoxide lasers, environmental monitoring and teaching and scientific research. In the experimental teaching of students, it is used to make the rescue model of CO poisoning, measure the reducibility of iron ore, low-temperature reduction and pulverization of iron ore, and measure the softening droplet perform...

AI Technical Summary

Problems solved by technology

[0004] When the carbon monoxide production room is in a ventilated state, it is not easy to control the flame of the alcohol lamp, and it is difficult to accurately control the reaction temperature; it is not easy to control the amount of formic acid added manually, and it is easy to cause the generation of CO in the reaction bottle sometimes violently and sometimes slowly, that is, the pressure of the flask is sometimes high When the time is low, the rubber stopper is easy to slip from the mouth of the flask, or the acid in the flask will splash around with the pressure at the moment of slipping, which will easily endanger the safety of the staff.

[0005] Conventional gas collection bottles are easy to leak in high-temperature environments, making gas collection difficult, and the leaked gas diffuses in the room, causing dizziness to the production staff in mild cases, and CO poisoning in severe cases

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