http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3640238-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCInventive | 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/C07C209-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-78 |
| filingDate | 2019-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_496c29f2f0904c79fc014a1f44da7ec3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cab69ee5252b14f61f0729776db072f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53dd6d1af28c9a53613b4e5cf0f80c85 |
| publicationDate | 2020-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3640238-A1 |
| titleOfInvention | Method for the preparation of di- and polyamines of the diphenyl methane series |
| abstract | The invention relates to a process for the preparation of di- and polyamines of the diphenylmethane series (MDA), in which crude MDA is first produced and this is then worked up by distillation, the work-up by distillation comprising the following: In a distillation column, separating off a stream containing aniline and water as the top product to obtain the first product stream as the bottom product, In this distillation column or in a device arranged downstream of this distillation column, stripping with steam to obtain a gaseous stream containing aniline, water and MMDA, Partial condensation of this gaseous stream containing aniline, water and MMDA to obtain a liquid stream containing MMDA and water (and optionally aniline) and a gaseous stream containing aniline and water (and optionally MMDA), • Drying the liquid stream obtained by the partial condensation and MMDA and water (and optionally aniline) containing liquid stream to obtain the second product stream. |
| priorityDate | 2018-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.