http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1482643-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_28a869d6fc950d50f6df03f549ca3afa |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A50-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 |
| filingDate | 1974-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1482643-A |
| titleOfInvention | Method for removing oxides of nitrogen from a gas |
| abstract | 1482643 Removing NO x from gases KUREHA KAGAKU KOGYO KK 23 Oct 1974 [31 Oct 1973 22 Dec 1973 30 April 1974] 45927/74 Heading C1A NO x are removed from a gas by contacting the gas with an aqueous solution containing an alkali metal, alkaline earth or ammonium salt of an organic acid and a salt of Fe, Co, Ni, Cu or Mn in the presence of an alkali metal, alkaline earth or ammonium salt of sulphurous acid. The organic acid from which the salt is derived may be a monobasic, dibasic or polybasic acid and suitable acids include acetic, propionic, butyric, malonic, succinic, ethyldiamine tetracarboxylic and nitrolotricarboxylic acids. The metal salt may be a sulphate, chloride, nitrate, thiocyanate, acetate, propionate, butyrate, malonate, succinate, ethyline diamine tetracetate or nitrilo triacetate or an inorganic complex such as potassium ferrocyanide. The sulphurous acid salt may be sodium, potassium or ammonium sulphite or bisulphite and may be generated in situ by SO x in the gas if these are present. The gas is suitably contacted with the solution at a temperature of 20-90 C. and pH of 4-7. The organic salt is preferably present in amounts of 0À06-3À6 moles/l., the metal salt in a concentration of 0À003-1À2/l. and the sulphurous acid salt in amount of 0À008-1À2 moles/l. The solution may also contain 0À01- 2-4 mole/l. of free organic acid to prevent the metal component of the metal salt separating out in the form of water insoluble salts. The solution prferably contains as the organic salt component a mixture of the monobasic scid salt, e.g. sodium acetate and a polybasic acid salt, e.g. the sodium salt EDTA ar nitrilotriacetic acid. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4367205-A |
| priorityDate | 1973-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.