http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5786506-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4bf706079a8d5bdcba5464bd1109f85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_75fcfb61e8c9c1c77d86ee7363827081 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-20 |
| filingDate | 1992-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16fdba713cad4e44d9919c5014e5f607 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da08a07c974562417f276e69cceb8d82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_130841aa80cd44984e216eb3a11fe08d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea10a28af8183371dfa61c636d456e17 |
| publicationDate | 1998-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5786506-A |
| titleOfInvention | Process for distillation of crude isocyanate concentrates |
| abstract | A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of: (A) preparing a mixture comprising (A-1) the isocyanate concentrate; and (A-2) an oil solution comprising; (A-2-a) a major amount of hydrocarbon oil, and (A-2-b) a minor amount of at least one ashless dispersant; and (B) heating the mixture to an elevated temperature at reduced pressure whereby isocyanate monomer is distilled and recovered leaving a liquid residue. The presence of the oil solution in the mixture facilitates the distillation of the isocyanate concentrate, generally improves the yield of distilled isocyanate monomer, results in a residue which is liquid and easily removed from the distillation apparatus, and the liquid residue can generally be burned without difficulty. |
| priorityDate | 1989-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 1083.