http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-982483-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-84 |
| filingDate | 1962-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_842d12c4b44b80b72af929e04c8a6fa5 |
| publicationDate | 1965-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-982483-A |
| titleOfInvention | Process for the purification of aromatic amines |
| abstract | Aromatic amines are purified by distilling the amine after the addition of oxalic acid or an oxalate of a monohydric alcohol containing up to four carbon atoms to remove orthodiamines. In an example tolylene diamine containing 2.6% ortho isomers has added thereto anhydrous oxalic acid and is distilled under nitrogen and the product on solidification contains 0.6% ortho isomer. Other amines which may be similarly purified are aniline, m- and p-phenylene diamines, toluidines and naphthalene diamines. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4720326-A |
| priorityDate | 1962-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.