| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C265-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-74 |
| filingDate |
2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111718282-B |
| titleOfInvention |
A kind of method for preparing low-chlorinated impurity content isocyanate based on salt-forming phosgenation |
| abstract |
The invention provides a method for preparing isocyanate with low chlorinated impurity content based on a salt-forming phosgenation method. The ratio of the particle size distribution of the salt particles obtained by the salt-forming reaction in the method within the range of average particle size ±30% accounts for more than 70% of the total particle size distribution, and the average residence time without stirring is less than 60 minutes. Compared with the traditional method, the product obtained by this method has a lower content of chlorinated impurities. |
| priorityDate |
2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |