http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8884053-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d4c37999a8967afafb70c386db555c4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94f11f78f9b720c7591e032727d81fbf http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d270c6541cde81f6ceb0b43ae9e20c09 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-3817 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 |
| filingDate | 2009-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e38185bb7512d00760a4a7d23e11447 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cb96ed0eb78e1006026568d30431514 |
| publicationDate | 2014-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8884053-B2 |
| titleOfInvention | Method for the manufacture of aminoalkylene phosphonic acid |
| abstract | A method for the manufacture of amino alkylene phosphonic acids is disclosed. Pure P 4 O 6 is hydrolyzed in the presence of a homogeneous Broensted acid catalyst whereby the pH of the reaction medium is maintained below 5 and the free water content of said reaction medium is, after the P 4 O 6 hydrolysis has been completed, from 0 to 40%. The required amine component can be added before, during, or in one preferred execution, after the P 4 O 6 hydrolysis has been completed. Formaldehyde is then added and the reaction mixture containing the P 4 O 6 hydrolysate, the amine and the formaldehyde is reacted in presence of a Broensted acid catalyst selected from homogeneous and heterogeneous species. The amino alkylene phosphonic acid reaction product can then be recovered in a manner known per sé. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10774059-B2 |
| priorityDate | 2008-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 235.