http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-379756-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_87bc7226e997334435fa1347bf1fc0dc http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a13b532418237647d3ef08fbc667705e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06 |
| filingDate | 1931-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1932-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-379756-A |
| titleOfInvention | Improvements in or relating to the production of iron oxide pigments |
| abstract | Pigments consisting of ferrie oxide are obtained by reacting the sludge formed in the reduction of aromatic nitro-compounds to amines by means of iron with 30-50 per cent of the amount of sulphuric acid chemically equivalent to the iron present, and setting and calcining the resulting mixture. Spent acid from the nitration of benzol &c. may be used without separation of the nitric acid also present, and may provide sufficient acid for the first step of the process. |
| priorityDate | 1931-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.