http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MX-173095-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G37-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-28 |
| filingDate | 1989-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d1e34849abee1f1057493c9cee287e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48b46cfec1af1675ccecbc789cf098f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6b0f8101f9227e19f0062f42466332e |
| publicationDate | 1994-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MX-173095-B |
| titleOfInvention | PROCEDURE FOR OBTAINING SODIC DICROMATE |
| abstract | The present invention refers to a process for obtaining sodium dichromate and sodium dichromate solutions by means of oxidizing alkaline digestion of chromium minerals, the process is characterized in that the sodium monochromate solution is allowed by evaporation, before transformation into a solution of Sodium dichromate, at contents of 700 to 1000 g / liter of Na2CrO4, the monochromatic ions are then converted by 75 to 95 percent into dichromate ions, the solution is then released, by cooling to a temperature below 0 degrees C and filtration, in a large proportion of sodium sulfate and in the remaining solution the residual monochromatic ions are transformed by electrolysis and / or by reaction with chromic acid and / or reaction with carbon dioxide, if appropriate after concentration by evaporation of the solution , in dichromate ions. |
| priorityDate | 1988-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.