http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-212757927-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ab913c2ea41fe031c86b45d13f8e6f70 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate | 2020-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41839c8bf7b890f191136e77222993ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a2878cf88a117c24dc28fbb771eadf8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6677276eef8e3d56f57c62a85433b00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b66a79ca7aca4434f0fb9c5f1cbeca24 |
| publicationDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-212757927-U |
| titleOfInvention | Environment-friendly device for recovering maleic anhydride from efficient solvent |
| abstract | The utility model discloses an environment-friendly device for recovering maleic anhydride by using a high-efficiency solvent, which solves the technical problems of low recovery rate and high equipment corrosivity in the maleic anhydride recovery process, and adopts the technical scheme that the device comprises an absorption tower, a desorption tower, a rear flash tower, a tail gas recovery tower, a centrifugal extractor, a plurality of heat exchangers, a pump and a storage tank; wherein, the circulating pump of the tower kettle of the absorption tower, the extraction outlet of the rich oil storage tank, the tower kettle pump of the post flash tower, the circulating cooling pump of the post flash tower and the extraction outlet of the lean oil storage tank are provided with a plurality of branches, thereby effectively ensuring the content of maleic anhydride in the feeding of the desorption tower and the content of impurities in the circulating absorbent and fully utilizing the heat contained in the system. The process for recovering maleic anhydride by the device effectively ensures that the purity of the maleic anhydride reaches 99.9 percent (wt), the yield of the maleic anhydride reaches more than 98 percent, and the recycling rate of the absorbent reaches more than 99.9 percent; compared with the existing solvent absorption method treatment process, the solvent ratio is lower, the stability is better, the generation of waste residues is greatly reduced, the effect is obvious, and the method is favorable for popularization and application in the field of maleic anhydride recovery. |
| priorityDate | 2020-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.