http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8605215-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27afc04bbf2d4b864d9a0574c38466f2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-00 |
| filingDate | 1986-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8955e307bf2745a32ba0f13b69b87179 |
| publicationDate | 1986-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-8605215-A1 |
| titleOfInvention | Method for the electrochemical oxidation of sulphuric acid chromium iii solutions into chromium vi solutions |
| abstract | The treatment of nitric acid-containing sulphuric acid chromium III solutions, as they are produced during the oxidizing purification of combustion gases, presents great difficulties or is very costly. The aim of the invention is to provide a method wherein the current expenses for the electrolysis are low. The method, according to the invention, for the electrochemical oxidation of sulphuric acid chromium III solutions into chromium VI lies essentially in that the nitric acid, the sulphuric acid and the chromium are contained in the electrolyte, the nitric acid being used as redox carrier for the oxygen electrode acting as cathode and the nitric acid being regenerated by the oxygen. Carbon or graphite are used as cathode material. For the anode, electrodes are used which present a higher oxygen overvoltage such as for example lead dioxide. The cell voltages which may be obtained in these conditions are comprised between 0.9 and 2 volts. This means that the current expenses for the electrolysis are reduced by 1/3 approximately. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111094629-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6468414-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0436146-A1 |
| priorityDate | 1985-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.