http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101370760-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-149 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-149 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 |
| filingDate | 2007-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16a13913205f9011a96bd7e05a3c5afb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80c8928d9541b1229c4f48d2e1c0b578 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_549aa7bcda21aca24f656e14dfba5b14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a29cf7feb1589b0820d175d993553b4f |
| publicationDate | 2009-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101370760-A |
| titleOfInvention | Process for production of 1,6-hexanediol |
| abstract | A method is provided for obtaining highly pure 1,6-hexanediol in which the contents of impurities such as 1,4-cyclohexanediol, 1,5-hexanediol, 1,2-cyclohexanediol, 1,7-pentanediol, 1,5-pentanediol and high boiling point components are significantly reduced. This process for producing 1,6-hexanediol from cyclohexane comprises the steps of: (1) treating an aqueous extraction concentrate of a reaction mixture obtained by oxidation of cyclohexane with a lower alcohol to esterify monocarboxylic acids and dicarboxylic acids contained in the extract, and simultaneously remove and separate by distillation water, excess lower alcohols and carboxylic acid esters; (2) converting oligomer esters contained in the bottom liquid to carboxylic acid esters by depolymerizing the oligomer esters at a high temperature and high pressure in the presence of a lower alcohol and a catalyst; and (3) hydrogenating the carboxylic acid esters distilled off in the step (1) and the carboxylic acid esters obtained in the step (2) either respectively or collectively to convert to 1,6-hexanediol. |
| priorityDate | 2006-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.