http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-970001301-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 |
| filingDate | 1996-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a46a26ca0272d8f51734e42bfce5095 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9513a94977513e2e818ee2fa6ebca027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94412b04eff7ba2f2beae31944ac27c3 |
| publicationDate | 1997-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-970001301-A |
| titleOfInvention | Method for preparing dinitrotoluene and dinitrotoluene isomer mixtures |
| abstract | The isomeric mixture of dinitrotoluene and dinitrotoluene comprises a mixture of mononitrotoluene or a mononitrotoluene isomer mixture comprising (1) from about 80 to about 100 weight percent of an inorganic component, and (2) up to about 20 weight percent of an organic component, To produce a one-step continuous process. (A) about 60 to about 90 weight percent of sulfuric acid, (b) about 1 to about 20 weight percent nitric acid, and (c) 5 weight percent or more of water. The organic component of the nitric oxide contains from about 70 to about 100 weight percent of the nitrotoluene isomer and up to about 30 weight percent of the nitration reaction by-product. The nitration reaction is carried out under adiabatic conditions. The molar ratio of nitric acid to mononitrotoluene is generally from about 0.7: 1 to about 1.4: 1. The phase formed during the nitration reaction is subsequently separated and the acid phase is sagged to remove at least 5% by weight of water present therein. The water can be removed by distillation or flash evaporation, optionally with simultaneous supply of heat. After removing the water, nitric acid having a concentration of about 50 to 100% is added to the acidic phase treated in an amount sufficient to satisfy the compositional requirements of the nitric acid useful in the process of the present invention. The re-condensed acidic phase is then returned to the nitration reaction. |
| priorityDate | 1995-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.