http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0197613-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e5302e08e56037ff7bc5c9b6fcc29f9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-0206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-02 |
| filingDate | 1986-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab24802d7eeb96fb148fded666c16b41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8af6c26eea178e44fc8b9bde0b82913a |
| publicationDate | 1986-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0197613-A2 |
| titleOfInvention | Water addition to enhance phosphoric acid salt catalyst activity |
| abstract | A method for enhancing the catalytic activity retention of a phosphorus acid salt catalyst, especially a metal acid phosphate during.the production of polyalkylene polyamines from the reaction of a feed of (i) ammonia and/or an alkyleneamine compound having at least two amino groups, such as, ethylenediamine, and (ii) an alkanolamine having at least one amino group, such as, ethanolamine. Sufficient water is utilized in the feed to enhance the catalytic activity retention of the phosphorus acid salt catalyst. When a metal acid phosphate catalyst is used, the water keeps the metal acid phosphate in the acidic state and/or returns the metal acid phosphate to the acidic state. The reaction is conducted in the gas phase, in the presence of a catalytically effective amount of phosphorus acid salt catalyst and at a temperature sufficient to form the polyalkylene polyamines. Also, when the phosphorus acid salt catalyst has sustained a decrease in the activity during the production of polyalkylene polyamine, water can be added in sufficient amount to increase the activity of the catalyst. |
| priorityDate | 1985-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 311.