http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0812631-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5073c72837c69a4850d017e75290dd1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-24 |
| filingDate | 1994-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c478c0d38e544f3587166be57c6f884b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d37e8ac502b49a2097f02add2db84749 |
| publicationDate | 1996-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0812631-A |
| titleOfInvention | Process for producing iminodisuccinic acid and its alkali metal salt and biodegradable chelating agent containing them |
| abstract | (57) [Summary] [Objective] A method for producing high-purity iminodisuccinic acid and its alkali metal salts with a high yield and a short reaction time, as compared with conventional methods, (D, D) -free iminodisuccinic acid and its A method for producing an alkali metal salt and a biodegradable chelating agent containing at least one of them as an active ingredient. A method for producing a tetraalkali metal iminodisuccinate by adding maleic acid half ester to aspartic acid or ammonia under alkaline conditions, followed by hydrolysis and evaporation to dryness. Alternatively, a method for producing iminodisuccinic acid by adding sulfuric acid after hydrolysis without evaporating to dryness. Furthermore, a method for producing iminodisuccinic acid and its tetraalkali metal salt free of a (D, D) -form by specifically adding to (L) -aspartic acid. In addition, by preferential crystallization and washing of (L, L) -form and (D, L) -form mixture of iminodisuccinic acid or tetraalkali metal salt (L, L) -form. L) -A method for selectively obtaining iminodisuccinic acid. And (D, D) -Biodegradable chelating agent containing as an active ingredient at least one type of iminodisuccinic acid and its alkali metal salt that does not contain a body. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8445719-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7166688-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2944959-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9845251-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0026398-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6870026-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112159331-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107162748-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112159331-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8329943-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009051032-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1247800-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3127896-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100341847-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6107518-A |
| priorityDate | 1994-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.