http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6423876-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C407-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C409-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C409-12 |
| filingDate | 2002-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fe69e3aa5b00cea6796b127edc0ccff |
| publicationDate | 2002-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6423876-B1 |
| titleOfInvention | Process for producing dihydroxybenzene |
| abstract | There is provided a process for producing dihydroxybenzene, which comprises the steps of: n (1) oxidizing diisopropylbenzene to obtain a reaction mixture containing di(2-dihydroperoxy-2-propyl)benzene; n (2) cleaving di(2-dihydroperoxy-2-propyl)benzene in the reaction mixture to obtain a mixture containing crude dihydroxybenzene; n (3) distilling the mixture containing crude dihydroxybenzene to obtain a fraction containing acetone from a low boiling side, and a fraction containing dihydroxybenzene from a high boiling side; n (4) distilling the fraction containing dihydroxybenzene obtained in the above-mentioned step (3) to obtain a fraction containing dihydroxybenzene from a low boiling side, and a fraction containing heavy material from a high boiling side; and n (5) mixing the fraction containing dihydroxybenzene obtained in the above-mentioned step (4) with water, and contacting the resulting mixture with an extraction solvent, followed by separating into an aqueous layer containing dihydroxybenzene and an oily layer containing impurity. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8530705-B2 |
| priorityDate | 2001-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.