| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2381-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 |
| filingDate |
2019-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111630093-B |
| titleOfInvention |
Method for recovering amide-based compounds |
| abstract |
The present invention provides for efficient recovery of amide-based compounds, such as N-methyl-2-pyrrolidone, from waste liquors produced during the production of polyarylene sulfides containing amide-based compounds, such as N-methyl-2-pyrrolidone The method of pyrrolidone. |
| priorityDate |
2018-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |