http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003028056-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 |
| filingDate | 1998-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63101d989f1cb8f69dfcb5644348851f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10a290f73fbf11528da6ff154d835c92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc9336f4d35fd28c62e095338c409cb8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b09fdd036c7320d68a8fb44169623bf |
| publicationDate | 2003-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2003028056-A1 |
| titleOfInvention | Adiabatic process for producing dinitrotoluene |
| abstract | Dinitrotoluene (DNT) is produced by the adiabatic nitration of toluene with nitric acid at a temperature of from about 60 to about 200° C. and at a molar ratio of toluene to nitric acid of from about 1:1.5 to about 1:3.0. The reaction mixture thus-obtained is concentrated to a water content of up to 30% by weight. The dinitrotoluene which is present in the reaction mixture is at least partially (if not completely) removed from the reaction mixture either before or after concentration of the reaction mixture. The DNT which is still present in the vapor generated during the concentration of the reaction mixture is kept liquid by the addition of a solvent to the vapors generated during concentration of the reaction mixture. The solvent added to vapor, together with any DNT present in the vapor is recovered. This solvent/DNT mixture may be recycled directly to the reaction vessel. The solvent/DNT mixture may also be separated. The separated solvent may be recycled to the solvent addition step. The separated DNT may be combined with the recovered DNT product or it may be recycled to the nitration reaction mixture. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102838489-A |
| priorityDate | 1997-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.