http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103408419-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 |
| filingDate | 2013-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103408419-B |
| titleOfInvention | Method for treating 7-ADCA (Amino Desacetoxy Cephalosporanic Acid) extract liquor |
| abstract | The invention discloses a method for treating 7-ADCA (Amino Desacetoxy Cephalosporanic Acid) extract liquor. The method comprises the following steps of: eluting the impurities of the 7-ADCA extract liquor in an eluting tower by using concentrated sulfuric acid, and collecting clean extract liquor and waste sulfuric acid; washing the obtained clean extract liquor in a reaction kettle, then splitting phases, and distilling an organic phase at normal pressure to obtain dichloromethane; adding water to kettle residues, decompressing, and distilling to obtain residual dichloromethane; cooling a mother solution, carrying out suction filtration to obtain phenylacetic acid, and mechanically applying the mother solution to a next batch; mixing a water phase and the waste sulfuric acid obtained from the step (1), and drying to be used for producing polymeric ferric sulfate. The method disclosed by the invention can be used for realizing the continuous production, improving the operating environment of workers and reducing the labor intensity of the workers. The obtained phenylacetic acid is white in colour and lustre without abnormal odour, achieves the purity more than 99%, has better market receptivity, can be used for producing the penicillin. The method disclosed by the invention can be used for producing the polymeric ferric sulfate by utilizing waste acid and waste iron, thereby changing the wastes into valuables and realizing the zero discharge of three wastes. |
| priorityDate | 2013-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.