http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8551312-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_09ba333eec79900ce61d89bc0138d383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_934d2001b891d3c771496f4ba88851e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f04ee56143ecad59ccd3e3da68af768d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-42 |
| filingDate | 2007-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ade02f848af0fac94f4828101e3f045e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_150ceeec8b2acd3a3f02a94780ebc48a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eef6976ff08ed95c12ab64a809f81e8c |
| publicationDate | 2013-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8551312-B2 |
| titleOfInvention | Process to prepare amino acid-N, N-diacetic acid compounds |
| abstract | The invention relates to a process for the production of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups or its salt with less than an equivalent of alkaline metal based on the number of carboxyl groups, said process comprising reducing alkali metal ions from an aqueous solution of an alkali metal salt of an amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups and acidifying the amino carboxylate starting material by first performing a chemical acidification step using an organic or inorganic acid to get a compound in which at least one of the groups is protonated, and in a subsequent step further acidifying the amino carboxylate starting material and reducing alkali metal ions from an aqueous solution of the partially acidified alkali metal salt of the amino acid having at least one secondary or tertiary amino group and three or more carboxyl groups by electrodialysis, wherein the electrodialysis is performed using a hydrogen ion permselective membrane on the anode side and a cation-permeable membrane on the cathode side. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11713435-B2 |
| priorityDate | 2006-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.