http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114272738-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0d83f8911a630ce8a4535900567bf426 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-77 |
| filingDate | 2021-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_678875f30bc616bb152bb63f074a51f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45294da8a8627b4e8a0a11c64be50bc4 |
| publicationDate | 2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114272738-A |
| titleOfInvention | Method for recycling nitrogen oxide gas in diazotization reaction process |
| abstract | The invention belongs to the field of industrial waste gas treatment, and relates to a method for recycling nitrogen oxide gas in a diazotization reaction process. The method comprises the following steps: NO produced by reaction of diazotising reagents X Introducing the gas into an absorption device filled with concentrated sulfuric acid until the content of the nitroso-sulfuric acid in the absorption liquid is 60-96 wt%; placing primary arylamine in sulfuric acid solution, stirring to form suspension, dropwise adding the obtained absorption liquid into the suspension for reaction, and preparing the diazonium salt solution. The invention not only can absorb the nitrogen oxide gas generated in the diazotization reaction process, but also can use the absorption liquid as the diazotization reagent to be applied to the diazotization reaction, thereby realizing the recycling of waste gas and realizing the processSimple and has higher economic benefit. |
| priorityDate | 2021-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.