http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004143142-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-84 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-84 |
| filingDate | 2003-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bb453405f82a19dabf1b72701c40907 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_061279bc40b87be6a3a54562c9cc12b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af4514aae26ff91c824a75f0e53f5357 |
| publicationDate | 2004-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2004143142-A1 |
| titleOfInvention | Process for manufacture of bisphenols |
| abstract | A method for the manufacture of bisphenols comprises introducing a combined feed stream comprising a feed stream and a recycle stream into a reactor system comprising at least one reactor containing a catalytic proportion of an acid catalyst and wherein the combined feed stream comprises a carbonyl compound and a stoichiometric excess of phenol; removing from the reactor system a reactor effluent; splitting the reactor effluent into a crystallization feed stream and an effluent recycle stream; extracting from said crystallization feed stream a bisphenol adduct, remainder comprising a mother liquor stream; dehydrating said mother liquor stream and said effluent recycle stream in a dehydrator wherein excess water and carbonyl compound are removed; and recycling the dehydrated mother liquor and the dehydrated effluent recycle stream back to the combined feed stream to effect improved production of p,p-bisphenol, along with increased reactor selectivity and reduced promoter quantities. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114054088-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1985602-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1985602-A1 |
| priorityDate | 2002-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 266.