http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-951791-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99505f5f312672820e9f78c254c00a4d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aa75e0b232702c772b7264ea28177e47 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D59-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D47-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D59-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-02 |
| filingDate | 1960-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-951791-A |
| titleOfInvention | Improvements in or relating to a process for the enrichment of ammonia in deuterium |
| abstract | <PICT:0951791/C1/1> In a method of enrichment of ammonia in deuterium by a dual-temperature isotopic exchange between liquid ammonia and a gaseous phase comprising hydrogen (e.g. hydrogen or ammonia synthesis gas), in which the gaseous phase is saturated by direct contact in a scparate exchanger with the vapour of the liquid phase which contains a non-volatile alkali metal amide as a catalyst of the isotopic exchange, liquid ammonia containing catalyst circulating in a closed circuit to make up the quantity of ammonia removed in the saturated gaseous phase, the accumulation of non-volatile dissolve catalyst is avoided by introducing into the circuit a make-up quantity of liquid ammonia containing catalyst, said quantity being equal to the quantity necessary for saturation of the gaseous phase plus a quantity which is at least adequate to allow, by withdrawal of the liquid having the most catalyst, at a point of the circuit located adjacent to the outlet of the separate exchange, the removal of a quantity of catalyst which is at least equal to the quantity which has been introduced with the make-up liquid. In Fig. 2, ammonia leaves cold tower F and enters hot tower 1 via 3, and travels via 4 and 5 to tower 2 which is the separate exchanger for saturating the gaseous phase. The gaseous phase enter tower 2 via 6 and trowels via 7 to hot tower 1 and then via 9, heat exchanger 10, and 11 to the cold tower F. A closed circuit of liquid ammonia containing catalyst comprises tube 15, tower 2, tube 12, heat exchanger 10, tube 13, and reheater 14. In tower 2 part of the ammonia is removed in the gaseous phase. The circulating ammonia is supplemented by that leaving hot tower 1 via tube 5, and a conduit 16 in tube 12 is used to drain off ammonia which is more concentrated in catalyst than that entering tower 2. Thus the build-up of catalyst in the circulating ammonia is avoided. |
| priorityDate | 1959-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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