| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c8b12aa923f4c2dad8eab4ce43467483 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2001-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-10 |
| filingDate |
2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_851a6ada94c6c4fad16a5229c1cdcd48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9c1eda76a096555fb67cd9552150b85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54b5e4509abf4be4af4aa12d4531b15f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f336e14f818ec0b6deee2e58c152fcb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c391ad77a60d3417607d94ade2f9c6de |
| publicationDate |
2022-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114671561-A |
| titleOfInvention |
Method for controlling the COD of wastewater by the water content of esters |
| abstract |
The invention is applicable to the technical field of COD wastewater treatment, and provides a method for controlling the COD of wastewater by the water content of esterified products. The reactant discharged from the esterification reaction kettle is first fed into a dehydration tower; After heat exchange with the wastewater discharged from the bottom of the esterification water recovery tower, the wastewater enters from the top of the esterification water recovery tower, and the organic gas recovered from the top of the esterification water recovery tower is transported to the esterification dehydration tower connected to the condenser. Carry out cooling and recovery; then send the waste water through the esterification water recovery tower to the rectification tower for rectification; send the gas output from the top of the rectification tower to the acetaldehyde condenser; extract the acetaldehyde through the acetaldehyde condenser, and pass the ethylene glycol Distillation tower to extract ethylene glycol; filter the wastewater in the ethylene glycol distillation tower through COD membrane, and then add a degrading agent: finally precipitate and filter the wastewater; transport the filtrate to the recovery tank, and detect the COD concentration of the wastewater in the recovery tank, It can effectively reduce the COD content in wastewater. |
| priorityDate |
2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |