http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114014822-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c5c6acbb73abb1cdbab3885f7f86affe |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-0085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0093 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-0846 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-042 |
| filingDate | 2021-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_163cc0b5ba35987ed8325cab14114ef3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0393878b2d41d7cd13174af723d2bff8 |
| publicationDate | 2022-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114014822-A |
| titleOfInvention | Method for preparing disperse blue 360 by using microchannel reaction technology |
| abstract | The invention discloses a method for preparing disperse blue 360 by using a microchannel reaction technology, which comprises the steps of dissolving 2-amino-5-nitrothiazole in a sulfuric acid organic acid solution and a nitroso-sulfuric acid solution, synchronously injecting the solutions into a microchannel reactor I for diazotization reaction, and allowing a diazo solution to enter a receiver; then carrying out coupling reaction on the diazo liquid and the coupling component in a second microchannel reactor, controlling the residence time of the reaction materials in the first microchannel reactor and the second microchannel reactor by adjusting the flow of a pump, finally collecting the reaction materials from a discharge valve, transferring the reaction materials into a post-treatment kettle, concentrating, crystallizing, filtering and drying to obtain a crude product; then, a high-yield and high-purity blue crystal is obtained through a crystal transformation process, namely disperse blue 360. The method has the advantages of simple and safe operation, low amplification effect, good temperature control effect, high instant contact reaction rate and high molar yield; excessive diazotization reagent and coupling components are not required to be added, raw materials are saved, the organic acid recovery difficulty is low, the production cost is reduced, the energy consumption is low, and continuous clean production can be realized. |
| priorityDate | 2021-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.