RE: Stunning5 Oct 2025 08:15
It would be very expensive to separate the He-3 from natural gas. Unlike He-4 , which is often needed as a liquid, natural gas does not need to be cooled to around -270C before it can be sold.
However In the process of liquefying Pulsar's He-4, He-3 is also liquefied. Fortunately a liquid mixture of He-3 and He-4 consists of two layers, one of these is almost pure He-3. This He-3 rich layer can be easily and cheaply separated from the He-4 layer. He-3 is therefore an economically obtainable by-product of the process of preparing He-4 for sale.