| 摘要 |
<p>In the extraction of deuterium from a mixture of nitrogen and hydrogen commercially prepared for subsequent synthesis to ammonia, the synthesis gas is passed through a first cold region in deuterium exchanging relationship with an exchange liquid, said exchange liquid being selected from the group consisting of ammonia, an amine, a mixture of ammonia and an amine and a mixture of amines, and a stream of hydrogen gas is circulated through a second cold region and a hot region in deuterium exchanging relationship with the exchange liquid. Thus the synthesis gas is not passed through the second cold region or the hot region, and these regions do not therefore have to be capable of accommodating so large a flow as the first cold region.</p> |
