http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006211893-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 |
| filingDate | 2006-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2344616a204919ff89235b8b2501538 |
| publicationDate | 2006-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2006211893-A1 |
| titleOfInvention | Process for the production of bisphenol A. |
| abstract | To provide a bisphenol A production process which can inhibit deterioration of the cation exchange resin catalyst used in the reaction step to enable long-time stabilized production of bisphenol A. Means for Implementation: A process for producing bisphenol A by reacting the raw materials acetone and phenol in the presence of a catalyst, in which one of the following means (1)-(3) is used: (1) In supplying to the reaction step the raw materials and the acetone recovered from the reaction step, the lower alcohol concentration in the whole amount of acetone supplied to the reaction step is adjusted to be not more than 100 ppm. (2) In supplying to the reaction step the raw materials and those recovered from the reaction step, the lower alcohol concentration in the reaction solution discharged from the reaction step is adjusted to be not more than 30 ppm. (3) In supplying the raw materials and the recovered acetone to the reaction step, at least the recovered acetone in the whole supply of acetone to the reaction step is refined before supplied to the reaction step to remove the lower alcohols contained as impurities. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10005709-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10457620-B2 |
| priorityDate | 2003-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.