| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a819eda0adf22936a52362eeebb9fb4 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 |
| filingDate |
1992-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1994-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0e6e01b111d647719129689b19589b0 |
| publicationDate |
1994-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5370849-A |
| titleOfInvention |
Metal chelate process to remove pollutants from fluids |
| abstract |
The present invention relates to improved methods using an organic iron chelate to remove pollutants from fluids, such as flue gas. Specifically, the present invention relates to a process to remove NOx and optionally SO2 from a fluid using a metal ion (Fe2+) chelate wherein the ligand is a dimercapto compound wherein the -SH groups are attached to adjacent carbon atoms (HS-C-C-SH) or (SH-C-CCSH) and contain a polar functional group so that the ligand of DMC chelate is water soluble. Alternatively, the DMC' is covalently attached to a water insoluble substrate such as a polymer or resin, e.g., polystyrene. The chelate is regenerated using electroreduction or a chemical additive. The dimercapto compound bonded to a water insoluble substrate is also useful to lower the concentration or remove hazardous metal ions from an aqueous solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9630299-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003026744-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102143932-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005061149-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220139663-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7405069-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019184383-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6872371-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6117333-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20200082091-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7892198-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004520882-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8071037-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5658545-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102572208-B1 |
| priorityDate |
1992-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |