http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0813446-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J3-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate | 1996-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6b5a6bd506f8ef993583cac7443ea72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93ce1d1aee31e57606c68b78bae55291 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb1ff83150e049ba4a22c3a8aaf2f9fb |
| publicationDate | 1997-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0813446-A1 |
| titleOfInvention | Vacuum system for controlling pressure in a polyester process |
| abstract | The present invention discloses a polymerization system having at least two reaction chambers wherein vacuum is used to remove vapors therefrom comprising a single vacuum system for supplying vacuum in increasing amounts to successive reaction chambers. Also disclosed is a polymerization process having at least first and second reaction chambers in which the pressure is decreased successively from said first chamber to a final chamber, said process comprising the steps of: maintaining a vacuum in said final chamber by removing final chamber vapors therefrom via a final chamber ejector connected thereto by a vacuum line; directing discharge from said final chamber ejector into a first chamber precondenser to produce first chamber non-condensed materials and condensed first chamber ejector motive fluid; directing said first chamber ejector non-condensed materials from said first chamber precondenser to a second ejector connected thereto by a vacuum line; directing discharge from said second ejector into a second condenser to produce second condenser non-condensed materials and condensed second ejector motive fluid; wherein said second condenser is connected to a vacuum pump. |
| priorityDate | 1995-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.