http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6280980-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_581f0566c3db4e3209c30877d09184db |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-20 |
| filingDate | 1997-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c1878789b627bec8d652d55675a9437 |
| publicationDate | 2001-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6280980-B1 |
| titleOfInvention | Process for the production of L-aspartic acid |
| abstract | A process for production of L-aspartic acid comprising (1) contacting (A) an enzyme-containing material having maleate isomerase activity and aspartase activity, or (B) an enzyme-containing material having maleate isomerase activity and an enzyme-containing material having aspartase activity, with an aqueous substrate solution containing maleic acid and ammonia, and/or mono or di-ammonium maleate, to form L-ammonium aspartate, in a reaction solution, (2) adding the reaction solution to an aqueous solution of maleic acid or maleic anhydride at a controlled rate to crystallize L-aspartic acid in a mother liquor, and (3) recovering the L-aspartic acid from the mother liquor, and (4) optionally recycling said mother liquor as a substrate solution for further reaction with said enzyme containing material of Step 1 and (5) optionally adding alkali such as ammonia to said mother liquor before, during, or after recycle. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11541105-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020255875-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10837036-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE45723-E http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009081739-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7888078-B2 |
| priorityDate | 1996-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.