http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114773209-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b369ed8bbc3538d34c930e0734856bac |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 |
| filingDate | 2022-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6dd6f8bd354c191164d35582600bb279 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c96c5703f06f9dd6e7984ac0ec479dff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e7bc87500752475899c0e4d5186133e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abcdfe7278e07531aec36d634859ef88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ce73f1600ad4081f59ccc75d846f365 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_279dc3404068081e16e08e24c9788276 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_839fea3652907653fb0f3174c44eb460 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_022b2a1e9e972ea44ee0aa1cda330574 |
| publicationDate | 2022-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114773209-A |
| titleOfInvention | A kind of method that reclaims N-methylaniline from fenthiochlor recrystallization mother liquor |
| abstract | The invention relates to a method for recovering N-methylaniline from a recrystallization mother liquor of fenthiofen, belonging to the technical field of chemical products. The specific steps are as follows: firstly, the recrystallization mother liquor of bentafen is subjected to pickling and layering treatment with 35% hydrochloric acid solution, and the N-methylaniline in the mother liquor is dissolved in the water phase to form an amine salt, and the water phase is then subjected to alkali treatment. Wash, regulate and control pH value 9-12, neutralize the amine salt and reduce to N-methylaniline, to realize the purpose of separation and purification of N-methylaniline, the recovered N-methylaniline oil layer is then distilled by high vacuum That is, high-purity N-methylaniline is obtained; meanwhile, the upper oil phase after pickling can directly recover toluene, a solvent with a relatively low boiling point in the components, through simple distillation. Thus, the problem of environmental protection that the mother liquor of fenthiophene is difficult to handle is solved, and N-methylaniline is recovered. |
| priorityDate | 2022-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.