| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_339dc2b4aef097ab379b3e273935be0e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-905 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-90 |
| filingDate |
1991-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a7cc01f166938b9f6457609be0de0b0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fe0f5b505fbf18d9c7ff440a8da878a |
| publicationDate |
1992-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
FR-2674843-A1 |
| titleOfInvention |
PROCESS AND DEVICE FOR PURIFYING CONCENTRATED SULFURIC ACID CONTAMINATED BY ORGANIC IMPURITIES. |
| abstract |
1. Method and device for purifying concentrated sulfuric acid polluted by organic contaminants. The process comprises the following two operations: oxidation of the organic contaminants by contact of the polluted sulfuric acid with at least one oxidizing gas, then filtration of the sulfuric acid through a filter with a pre-layer of gypsum to remove the precipitated oxidized organic contaminants and the insoluble. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0662448-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2714665-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5501847-A |
| priorityDate |
1991-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |