http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1256561-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0264fc2eb4bbd442d17641367cd967d5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-72 |
| filingDate | 2001-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70112d858ab34dc3b428d282f497bf14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcf2a6559840f0090f3b040bd5fefaf5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57b0d176bf7a699abbeb34d4c600adc1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21ef0dfb8dba5238cfea1bfc59699b29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80ba9ea1c4ac6f21e318c2b0c8aa29cf |
| publicationDate | 2002-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1256561-A1 |
| titleOfInvention | Process for decreasing by extraction the salt content of fractions comprising high boiling compounds which are obtained in the preparation of phenol from cumene |
| abstract | A method for reducing the salt content in is claimednHigh-boiling fractions used in the production of phenolnobtained from cumene by extraction. In the manufacture of phenolnCumene is formed in the cleavage of cumene hydroperoxide in addition to phenol andnAcetone also by-products such as Dimethylphenylcarbinol ornAcetophenone. These by-products fall in the distillativenProcessing of the fission product phase as a fraction, which is only at highnTemperatures boiling. These fractions point from thenacid-catalyzed cleavage following neutralization using sodium hydroxide solutionnalso alkali in the form of salts. The presence ofnSalt in this phase makes working up this phase considerably more difficult.nUsually the salt is extracted by extracting the fraction with waternremoved the faction. However, this can pose significant problemsnoccur when the aqueous phase does not differ from the organic phasencan be separated cleanly. According to the high boilersncontaining fractions for extraction not just an acidic aqueousnPhase but also added an organic liquid. To thisnThe subsequent phase separation is favored and accelerated.nThe organic fractions containing the high boilersnLiquid can be treated by simple distillation from the treatednFractions removed and used directly for dilutionnbecome. Through the method according to the invention, thenPhenol content in the high-boiling fractions decreased andnRecovered phenol.n n n Fractions treated according to the invention and having high boilers can be used asnStarting material for the production of carbon black can be used. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009080339-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009080875-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009080875-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8758573-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009080339-A3 |
| priorityDate | 2001-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.