http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107488361-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-366 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-15 |
| filingDate | 2017-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107488361-B |
| titleOfInvention | A method for continuous preparation of azo dyes in a microreactor |
| abstract | The invention discloses a method for continuously preparing azo dyes in a microreactor in the field of dye synthesis. The preparation of the azo dye is to first carry out the diazotization reaction of sodium nitrite solution, aromatic primary amine and inorganic acid in the first microreactor at room temperature to generate aromatic primary amine diazonium salt, and then aromatic primary amine diazonium salt is produced. The primary amine diazonium salt is coupled with the coupling components in the second microreactor to generate azo dyes. The invention adopts the microreactor to realize the continuous preparation of azo dyes, the process is simple, the reaction period is short, and the reaction process is easy to monitor and control; it does not need to add far excess sodium nitrite and coupling components to improve the reaction rate , saving raw materials and being environmentally friendly; the reaction liquid is mixed with high-speed collision in the microreactor, and a uniform reaction environment is instantly achieved, the reaction efficiency is high, and the yield and product quality of the reaction products are greatly improved. |
| priorityDate | 2017-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.