http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2008145109-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-82 |
| filingDate | 2007-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2008145109-A |
| titleOfInvention | METHOD FOR PROCESSING PHENOL |
| abstract | 1. A continuous process for treating a crude phenol stream containing methylbenzofuran and hydroxyacetone by passing the crude phenol stream through at least two successive reactors containing an acidic ion exchange resin, in which the temperature in successive reactors decreases in the direction of the phenol flow, so that the temperature in the first reactor in the phenol flow direction is 100 to 200 ° C, and the temperature in the last reactor in the phenol flow direction is 50 to 90 ° C, without a thermal separation step between two successive reactors. ! 2. A method according to claim 1, wherein from 2 to 4 reactors connected in series are used. ! 3. A method according to claim 2, wherein the number of reactors is 2.! 4. The method of claim 1, wherein the plurality of reactors are connected in parallel at each temperature. ! 5. A process according to claim 1, wherein the temperature in the first reactor in the direction of flow of the phenol is from 100 to 150 ° C, preferably from 100 to 120 ° C. ! 6. A process according to claim 1, wherein the temperature in the last reactor in the direction of flow of phenol is from 50 to 70 ° C. ! 7. The method according to claim 1, in which the initial concentration of hydroxyacetone in the crude phenol stream is from more than 0 to 1000 wt. hours / million, preferably from more than 260 to 1000 wt. ppm ! 8. The method according to claim 1, in which the initial concentration of methylbenzofuran in the crude phenol stream is from more than 0 to 200 wt. hours / million, preferably from 50 to 200 wt. ppm ! 9. The method according to claim 1, in which the crude phenol stream further contains less than 1000 wt. hours / million mesityl oxide, less than 500 wt. ppm 2-phenylpropionic aldehyde, less than 500 wt. ppm methyl isobutyl |
| priorityDate | 2006-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.