http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108976128-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-12 |
| filingDate | 2017-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108976128-B |
| titleOfInvention | Preparation method of 2-nitro-2-methyl-1-propanol crystal |
| abstract | The invention provides a preparation method of 2-nitro-2-methyl-1-propanol crystals, which comprises the steps of preparing 2-nitro-2-methyl-1-propanol by adopting the reaction of 2-nitropropane and paraformaldehyde, removing residual formaldehyde by adopting an acidic solid catalyst, and secondarily purifying a product by adopting cyclohexane to obtain the 2-nitro-2-methyl-1-propanol crystals, wherein the purity of the 2-nitro-2-methyl-1-propanol crystals is up to 99.8-99.99%, and the residual amount of the formaldehyde is 5-200 ppm. In addition, the reaction conversion rate based on 2-nitropropane can reach 98% to 99.7% according to the method of the invention, and the final yield after secondary purification is 90% to 97%. |
| priorityDate | 2017-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.