http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3263547-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50 |
| filingDate | 2017-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_441f38725732a4f3f0b42bbdff894322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aeabc03f2771af3fd82bd040b9b834b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f65055c4e9456c86aac0bcf3284ca71 |
| publicationDate | 2018-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3263547-A1 |
| titleOfInvention | Process for the production of di- and polyamines of the diphenylmethane series |
| abstract | The invention relates to a production process for di- and polyamines of the diphenylmethane series by the rearrangement of a condensation product of aniline and a methylene group-supplying agent preferably selected from the group consisting of aqueous formaldehyde solution, gaseous formaldehyde, para-formaldehyde, trioxane and mixtures thereof, wherein said condensation product is reacted in the presence of at least one silica-alumina catalyst, said catalyst having n¢ a surface area as determined by the BET method carried out according to ASTM D3663 - 03 (2015) of from 200 m 2 /g to 520 m 2 /g, preferably of from 350 m 2 /g to 495 m 2 /g, particularly preferably of from 400 m 2 /g to 490 m 2 /g, n¢ a molar ratio of silica / alumina on the catalyst surface of A, n¢ an overall ( bulk ) molar ratio of silica / alumina of C , and n¢ a quotient B = A / C ; nsaid catalyst being characterised in that "low" A values (i.e. equal to or lower than 8.0) are combined with "high" B values (i.e. of from 1.50 to 3.00), and "high" A values (i.e. larger than 8.00, especially equal to or larger than 8.50) are combined with "low" B values (i.e. of from 0.15 to 1.40). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021116419-A1 |
| priorityDate | 2016-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.