http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104945283-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | 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/B01F13-10 |
| filingDate | 2014-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104945283-B |
| titleOfInvention | A kind of method preparing isocyanate-monomer |
| abstract | The invention discloses a kind of method preparing isocyanates, comprise the following steps: first solvent adds reactor, is circulated；Being compressed by HCl, blended device outer tube enters salt-forming reaction still, is circulated in systems by venturi mixer after gas-liquid separation；Diamidogen mixes in blender inner tube with residual solvent, enters salt-forming reaction still and reacts, obtain diamine hydrochloride solution after then mixing with HCl in outer tube；Diamine hydrochloride solution and phosgene are reacted under an increased pressure and obtains the photochemical liquid of isocyanates.Described blender includes inner and outer tubes, and wherein, the internally installed spiral lamina of inner tube particle size part, inner tube small diameter part is in charge of wall and is provided with hole, is detachable base plate bottom inner tube；Outer tube sleeve is outside inner tube, and outer pipe bottom is mixer outlet.Invention enhances gas liquid reaction mixed effect, gained hydrochlorate granule is uniform, and HCl service efficiency is high, and energy consumption reduces, and the photochemical liquid purity obtained after phosgenation reaction is high. |
| priorityDate | 2014-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.