http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107117674-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2301-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-04 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-04 |
| filingDate | 2017-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107117674-B |
| titleOfInvention | Method for treating amino resin wastewater by extractive distillation and reaction side-stream distillation |
| abstract | The invention discloses a method for treating amino resin wastewater by extractive distillation and reaction side line distillation, which comprises the following steps: (1) simultaneously feeding the raw material mixture and the extracting agent into a first extraction rectifying tower for extraction, rectification and separation to respectively obtain a first tower top fraction and a first tower bottom fraction of the first extraction rectifying tower; (2) mixing the tower top fraction and the hydroxide of the first extractive distillation tower in a buffer tank, and adding the mixture into a reaction side-stream distillation tower for reaction side-stream distillation; (3) the first tower bottom fraction of the first extractive distillation tower enters a first solvent recovery tower for distillation treatment; (4) feeding the third tower top fraction of the first solvent recovery tower and the extractant into a second extractive distillation tower together for extractive distillation; (5) the fourth tower bottom fraction of the second extractive distillation tower enters a second solvent recovery tower for distillation treatment; the method has the advantages of simple process, high separation efficiency, high product purity and low production cost. |
| priorityDate | 2017-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.