http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-203709-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7129b5770cbcb07ce929d8adbfac4ba2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20758f247e127cf8584ce13a1c7dce12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_db09d13f1120ebb864819f52d86ca4d3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14 |
| filingDate | 1923-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1923-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-203709-A |
| titleOfInvention | Improvements in and connected with the manufacture of chromates and bichromates |
| abstract | 203,709. Jouve, A. J. B., Helbronner, A., and Soc. Hydro-Electrique et MÚtallurgique du Palais. Nov. 23, 1921, [Convention date]. Addition to 177,174. Alkali chromates and bichromates and iron oxide, producing.-In the electrolysis of an alkali carbonate solution with an anode of a chromium alloy, such as ferrochrome, according to the parent Specification, the electrolysis is continued after the complete conversion of the carbonate into chromate, in order to form bichromate. Concentrated solutions are preferably employed so that the resulting bichromate solution is near the crystallizing point. A current density of some hundreds of amperes per sq. metre is employed so as to heat the electrolyte. The electrolysis may be carried out in a series of baths between which the electrolyte circulates. The cathodes may be of lead. Iron oxide is removed from time to time by agitation and filtration of the liquid or by centrifugal separation. Neutral chromate may be obtained from the bichromate solution so prepared by adding excess of alkali carbonate. |
| priorityDate | 1921-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.