http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-36458-L
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0a540fd3aea96e06dbf33ff764d4dad |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-185 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-18 |
| filingDate | 1972-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-36458-L |
| titleOfInvention | Ammonium nitrate neutralizer |
| abstract | 1395346 Ammonium nitrate MISSISSIPPI CHEMICAL CORP 2 June 1972 [11 June 1971] 25945/72 Heading C1A [Also in Division B1] A thermal siphon-pressure pump neutralizer for neutralizing nitric acid with ammonia comprises a reaction vessel 2 suitable for containing an aqueous reaction medium and having a vapour outlet 23, and product outlet 27 defining the level of the aqueous reaction medium in the vessel; an elongated fluid impervious cylindrical member 10 positioned within the vessel so as to define a second reaction zone 11 within the member and a first reaction zone 5 outside the member, the member having an inlet 9 and an outlet 12 and being situated such that when the vessel contains an aqueous reaction medium, the member inlet will be beneath the level of the medium in the first reaction zone, and the member outlet will be above the level of the medium; ammonia inlet means 15 for introducing ammonia and/or ammonium hydroxide into the reactor vessel in proximity to the cylindrical member inlet 9 and in the direction of the inlet; and nitric acid inlet means 3 situated between the product outlet and the inlet of the cylindrical member. Nitric acid is introduced in amounts such that the concentration of the nitric acid entering the second reaction zone will be less than 15%, so that the major portion of the nitric acid will be neutralized with the ammonia at the said dilute concentration within the second reaction zone, and whereby the heat of neutralization and differential density will promote circulation of the reaction medium between the first and second reaction zones, and the water vapourized by the heat of neutralization will be discharged through the vapour outlet 23 and ammonium nitrate product will be recovered through the product outlet 27. The rate of circulation between the first and second reaction zones may be increased by spacing the ammonia inlet 15 and 16 and the second reaction zone inlet 9 so that a constriction X creates a venturi-like effect. A curvilinear deflector 21 supported above the cylindrical member outlet deflects the solution fountaining from the member downwardly back to the first reaction zone and vapours emitted from the member outlet circumvent the deflector and pass through the vapour outlet.n[GB1395346A] |
| priorityDate | 1971-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.