| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-365
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2303-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-727
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2303-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-727
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-725
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-24 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-24 |
| filingDate |
2017-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109641768-B |
| titleOfInvention |
Process for treating process water in enhanced oil and/or gas recovery processes |
| abstract |
The present invention relates to a process for treating process water derived from enhanced hydrocarbon recovery, wherein the process water comprises one or more water soluble polymers and Fe 2+ Ions, the method comprising: at least partially oxidizing Fe by introducing at least one reaction activator and oxygen into the process water 2+ Ions. Oxygen and Fe introduced 2+ The molar ratio of ions is less than or equal to 0.25. |
| priorityDate |
2016-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |