The application relates to a process device and method for preparing high-purity high-abundance
neon-22
isotope laser gas, which comprises a natural
neon gas
raw material storage tank, a first-stage thermal
diffusion separation column, a second-stage to (N-1)-stage thermal
diffusion separation column, an N-stage thermal
diffusion separation column and a low-temperature adsorption
tower connected in series, wherein the thermal diffusion separation column is used for separating and enriching
neon isotopes; based on the thermal
diffusion effect difference of neon-22 isotopes and other
isotope components, the abundance of neon-22 isotopes is enriched. After multi-stage thermal diffusion separation, neon-22 isotopes with an abundance of 99% to 99.99% are obtained at the end of the (N-1)-stage thermal diffusion separation column, and neon-22 isotopes with a purity of 99.99% to 99.999% are prepared. Compared with the prior art, the application significantly improves the abundance of neon-22 isotopes, and based on the demand for high-purity
laser gas for
laser gyro navigation, the neon-22 isotopes are deeply purified, that is, neon-22
isotope laser gas with an abundance of 99% to 99.99% and a purity of 99.99% to 99.999% is obtained.