http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56166157-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1980-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1070a2bf27ec1c8efbe07b9a53df70de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d3a795a268c0902942a9c4554ac92b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02c44ba4f284a1ca52cfa3db95e24232 |
| publicationDate | 1981-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56166157-A |
| titleOfInvention | Preparation of dl-lysine |
| abstract | PURPOSE: To separate the titled compound which is a useful amino acid while recycling the organic solvent phase for use, by hydrolyzing an aqueous solution of an α-amino-ε-caprolactam at a specific temperature, and bringing the solution into contact with a specific organic solvent in the presence of ammonia. n CONSTITUTION: An aqueous solution of an α-amino-ε-caprolactam is hydrolyzed at 110W160°C, and the resultant reaction mixture obtained from the step (A) is transferred to a concentrating step (B) to adjust the moisture in the mixture to 30W70wt% for accelerating the separation in the next step. The resultant concentrate 4 is then transferred to an extracting step (C) and the condensed water 2" to a separating step (D). In the step (C), the concentrate 4 is brought into contact with an organic solvent 5, e.g. chloroform, in the presence of ammonia to give DL-lysine and the remaining water as an extraction residue 6. An organic solvent layer 7 containing the unreacted α-amino-ε-caprolatam 1' is transferred to the separating step (D) and reused for the step (A) as a raw material for the hydrolysis with the condensed water 2". n COPYRIGHT: (C)1981,JPO&Japio |
| priorityDate | 1980-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.