http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0232023-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2410-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03B5-623 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-64 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03B5-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-06 |
| filingDate | 1987-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5637f99b422ae56cbcaa4a8ca4d93e57 |
| publicationDate | 1987-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0232023-A1 |
| titleOfInvention | Treatment of catalyst particles |
| abstract | The invention relates to processes and apparatus for the elutriation of particles of a Ziegler-Natta type alpha-olefin polymerisation catalyst, based on transition metal compound(s) and preferably also comprising magnesium compounds, by means of an elutriation liquid which is a non-polar liquid, for example a hydrocarbon chemically inert in relation to the catalyst. A preferred process comprises the following stages:n - preparation of a homogeneous suspension of the catalyst in the elutriation liquid. and - elutriation of the catalyst by means of the suspension and the elutriation liquid in one or two elutriation columns (F1),(F2), separating the large and fine catalyst particles respectively. n The apparatus comprises a tank (M2) for the preparation of the catalyst suspension and the elutriation column or columns (F1)(F2). n The invention also relates to elutriation of Ziegler-Natta catalyst particles using a non-polar elutriation liquid and wherein a special polar aprotic additive is employed, for example an organo-metallic compound. |
| priorityDate | 1986-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.