Argon is a colorless, odorless monatomic gas and an inert gas with stable properties. It does not have chemical reaction with other substances at room temperature and it is insoluble in liquid metals at high temperature. Therefore, it is widely used in various fields of industrial production, such as a protective gas in welding non-ferrous metals and metal heat treatment, a filling gas in energy-saving lamps ,electronics industry, etc.

In daily life, we come into contact with bottled or liquid argon . Bottled argon varies depends on the volume and internal pressure of the gas cylinder, with a bottling volume generally ranging from 5-8m ³. The standard density of argon is 1.784 kg/m ³, which means that 1 ton of liquid argon is 560 m ³ of argon.

There are two main methods for preparing argon , one is argon extraction (such as extract argon from synthetic ammonia tail gas). Another method is low-temperature air separation (HZUIG), which utilizes the different boiling points of oxygen, nitrogen, and argon for separation. The process includes steps such as air liquefaction, distillation and evaporation. The products of low-temperature air separation (HZUIG) are oxygen and nitrogen. In the process of producing oxygen and nitrogen, the argon component of the distillation column will be concentrated into an argon fraction (containing 8% to 12% Ar) and it will be extracted to produce pure argon (99.9-99.999%).

The main technical indexes of HZUIG argon equipment are:

1. Purity: 99.9-99.999%;

2. Flow: 5-150Nm ³/h (0.21-6.42TPD)