http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1424781-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S210-903 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-02 |
| filingDate | 1973-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1424781-A |
| titleOfInvention | Conversion process for nitrogen-containing compounds |
| abstract | 1424781 Preparation of nitrogen and plutonium recovery GENERAL ELECTRIC CO 26 Jan 1973 [9 Feb 1972] 3988/73 Heading C1A Gaseous nitrogen is prepared by heating a liquid containing nitrate salts at 300-600‹ C. in the presence of ammonia, ammonium compounds or mixtures thereof. Preferably a molar excess of the ammonia and/or ammonium compounds are used and the nitrate is dispersed in water and heated in atomized form. Nitrogen may be prepared from liquid waste containing nitrate salts, e.g. plutonium nitrate by establishing a heated bed of inert particles, e.g. silicon dioxide, introducing the waste into the fluidized bed in atomized form and heating in the presence of ammonia and/or ammonium compounds at 300-600‹ C. In the apparatus of Fig. 1 fluidizing gas enters portion 11 of fluidizing apparatus 10, which can be heated by coil 30. Liquid waste nitrogen containing compound enters portion 11 in atomized form and the cationic portion deposits on the particulate medium of the fluidized bed. The larger particles may be withdrawn through outlet 35 and new particulate medium may be introduced from reservoir 34. Gas filters 32 in expanded portion 12 retain solid particles carried in gas leaving 12. In the apparatus of Fig. 2, fluidized bed apparatus 40 has portion 41 containing a fluidized bed and larger diameter portion 42. Portion 41 is heated by heating means 43. Ammonia and/or ammonium compounds from source 81 and waste nitrogen containing material from source 82 are introduced to tank 50 and then to fluidized bed portion 41. Particles which settle are removed through outlet 57 and new particular medium is introduced from reservoir 55. Gas filter 58 in expanded portion 42 remove particles from existing gas. Water from effluent gas condenses in condenser 60, collects in reservoir 61 and passes to neutralization tank 63. Plutonium solution from tank 62 is collected in tank 66 and distilled in column 65. Distillate collects in tank 70 which is connected to quarantine tank 72. Water free of plutonium contamination is discharged from tank 72. Condensed gas from tank 61 is fed to scrubber 74 where it is washed with water from tank 80. Scrubbed gas passes to the atmosphere via filter 77. Vapours from tank 70 are fed to the middle portion of scrubber 74. The process avoids release of metallic cation from the nitrate waste either in the aqueous discharge or the gaseous discharge. Fluidizing gas enters at 0À9 to 1À1 feet per second fluidizing velocity. The inert particles initially have a size range between 70 and 500 microns. Waste solution enters the fluidized bed in atomized form at 3 to 11 millilitres per minute. Particles reaching a size in the range 500-800 microns are withdrawn. |
| priorityDate | 1972-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.