http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110072846-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-322 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D5-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C265-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C265-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-141 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 |
| filingDate | 2017-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110072846-B |
| titleOfInvention | The purification method of toluene diisocyanate |
| abstract | The present invention relates to a method for purifying toluene diisocyanate, which is capable of obtaining a product having a small amount of dimer in the final product by using a reactive dividing wall column in the production process of toluene diisocyanate. More specifically, according to the present invention, in order to obtain a product having a small amount of dimer according to the reversible reaction of monomer and dimer, it is designed by applying temperature, pressure, retention time, etc. of the reactive dividing wall column as appropriate specific conditions. Purification procedures, using reboilers with short retention times and high heat transfer rates, thus inhibit dimerization and increase product purity and yield. Therefore, high-purity toluene diisocyanate can be purified and obtained. |
| priorityDate | 2016-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419525102 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID11443 |
Total number of triples: 22.