http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111072497-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d296e8ab6e760c611c1ed9fe05bc5f9f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-27 |
| filingDate | 2019-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bde6e9c5f3296da3252c167b35ab8c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58521fe9fbc3070756d5da1e10a7ffa3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bed2dcfff13948c16e2fc8b32f7a006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ec24ada52b2589b1ceaa046432cf0bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67424178a70f19e2cbe0052b23e52522 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31a22b6d4c8ef4bb72a8041ecf427153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e33f3985758ebb53e6e4e053dcfc8c88 |
| publicationDate | 2020-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111072497-A |
| titleOfInvention | A kind of method of recovering N,N'-dibenzylethylenediamine salt from ion exchange resin to be regenerated of cefonicid sodium |
| abstract | The invention discloses a method for recovering N,N'-dibenzylethylenediamine salt from an ion exchange resin to be regenerated of cefnicil sodium, belonging to the technical field of medicine, comprising the following steps: a, weighing a certain amount of The ion exchange resin to be regenerated of cefonicid sodium is added with an alkaline solution and stirred, and filtered to obtain a filtrate; b, the filtrate is evaporated under reduced pressure to obtain a solid residue, ethyl acetate is added to the solid residue, stirred and dissolved to obtain Dissolving solution; c, adding brine to the dissolving solution, extracting and separating phases; d, adding desiccant to the obtained organic phase, and filtering into the crystallizer; e, adding acid reagent, crystallization agent, crystallizer to the crystallizer; and f, performing suction filtration after the crystal growing to obtain a filter cake, washing the filter cake and then vacuum drying to obtain N,N'-dibenzylethylenediamine salt. The method has the advantages of stable quality of the recovered product, simple recovery method and high recovery rate, and at the same time reduces the COD discharged from the mother liquor. |
| priorityDate | 2019-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.