http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103588916-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F136-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 |
| filingDate | 2013-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103588916-B |
| titleOfInvention | The preparation method of a kind of rare-earth catalysis system, its preparation method and polyisoprene |
| abstract | The invention provides a kind of rare-earth catalysis system, comprise rare earth oxide title complex and alkylaluminium cpd; Described rare earth oxide title complex has the chemical constitution Ln shown in formula (I)n 2 on 3 xRyL (I); Wherein, Ln is rare earth element; R is acidic cpd; L is to electron donor ligand compound; 0 < x≤4; 0≤y≤3.Compared with prior art, rare-earth catalysis system provided by the invention, without the need to rare earth oxide being converted into rare earth carboxylate and not needing interpolation three components muriate, also uses as catalyzer without the need to rare earth oxide is converted into anhydrous chlorides of rase earth elements.Rare-earth catalysis system preparation process provided by the invention is simple, easy and simple to handle, and this catalyzer shows higher catalytic activity.In addition not chloride element in rare-earth catalysis system provided by the invention, avoids the corrosion that chlorine element brings to production unit. |
| priorityDate | 2013-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.