http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007161816-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C61-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 |
| filingDate | 2007-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5abf59b98633d78aa16b167fe5224f3 |
| publicationDate | 2007-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2007161816-A1 |
| titleOfInvention | Method for producing organic acid |
| abstract | A novel method is provided whereby a free organic acid can be produced particularly from an ammonium salt of an organic acid having a high melting point obtainable by bioconversion of a carbon source in the presence of a neutralizing agent, efficiently at a low cost, and the used material for reaction and a byproduct can be recycled for reuse without being disposed. An ammonium salt of organic acid A such as a dicarboxylic acid, a tricarboxylic acid or an amino acid is subjected to reactive crystallization by means of acid B such as a monocarboxylic acid satisfying the following formula (1), to separate free organic acid A in solid form: n npKa(A)≦pKa(B) (1) nwhere pKa(A) and pKa(B) represent ionization indices of organic acid A and acid B, respectively, provided that when they have plural values, they represent the minimum pKa among them. The crystallization mother liquor after precipitating and separating organic acid A is, after separating acid B and then an ammonium salt of acid B, recycled for use in the reactive crystallization step. The ammonium salt of acid B is decomposed into acid B and ammonia, which are recycled for use in the reactive crystallization step and as a neutralizing agent in the bioconversion step, respectively. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8624059-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8193375-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8084626-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8246792-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8399687-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8410291-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8203021-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8466300-B2 |
| priorityDate | 2002-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.