http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0675097-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c45831d47f049b1e185129cd0d8b5f25 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-84 |
| filingDate | 1995-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d950d584ade284ce5101300a04818d7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fd90847476eb4c84f581083293e726f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e7f6caf7f7d091cdc431a9cd1b7ddae |
| publicationDate | 1995-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0675097-A1 |
| titleOfInvention | Process for purifying a bisphenol |
| abstract | A process for the purification of a crude bisphenol comprises the following steps:n (1) preparing a mixture comprising from 35 to 70 percent of a crude bisphenol and from 65 to 30 percent of water, by the total weight of bisphenol and water, without the addition of a substantial amount of an organic solvent or an alkaline compound, at a pressure above atmospheric and a temperature above 100°C, (2) crystallizing bisphenol at a pressure below atmospheric, (3) separating crystalline bisphenol from the mother liquor, (4) dividing at least a portion of the mother liquor into a bisphenol-rich oil phase and a water-rich phase, (5) preparing a mixture comprising at least a portion of the bisphenol-rich oil phase, water and optionally an additional amount of crude bisphenol at a pressure above atmospheric and a temperature above 100°C, (6) cooling the mixture and crystallizing bisphenol; and (7) separating crystalline bisphenol from the mother liquor. |
| priorityDate | 1994-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 139.