http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1348689-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc9740ef706cde29e885504f274ffa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D241-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D241-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-40 |
| filingDate | 1998-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec68406c28abbf1535901d1cf1ac9d3a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc365c234166436b12238186a1bdd4c1 |
| publicationDate | 2003-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1348689-A1 |
| titleOfInvention | Process for production of s,s-ethylenediamine-n,n'-disuccinic acid iron alkali salt |
| abstract | The present invention concerns a process for producing annS,S-ethylenediamine-N,N'-disuccinic acid iron alkali saltnhaving low contents of a lactam compound and annethylenediaminemonosuccinic acid, said process comprising thenstep ofn washing a concentrated liquid or dried substance of annaqueous solution of S,S-ethylenediamine-N,N'-disuccinic acidniron alkali salt with at least one water-containing alcoholnhaving 1 to 4 carbon atoms; as well as a process for producing an S,S-ethylenediamine-N,N'-disuccinicnacid iron alkali salt which comprises: dispersing an iron oxide in an aqueous medium and addingnthereto S,S-ethylenediamine-N,N'-disuccinic acid or an alkalinsalt thereof continuously or intermittently to carry out anreaction while maintaining pH of a reaction liquid at fromn4.5 to 7 and a reaction temperature at from 70 to 100 °C. |
| priorityDate | 1997-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.