| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_802cb425a297a0766bc7d8cdc2f03898 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-19 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-19 |
| filingDate |
1977-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e95b413715641cc762be22bed3957967 |
| publicationDate |
1978-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-2723773-A1 |
| titleOfInvention |
CATALYST AND METHOD FOR PRODUCING OXIRANE COMPOUNDS |
| abstract |
A novel shaped catalyst material having improved crush strength for catalysing the liq. phase epoxidation of a 2-60 C olefin with an organic hydroperoxide consists of 80-95 wt. % finely divided particles of tungsten boride bonded by 5-20 wt. % of preoxidised aluminium powder having an oxide coating constituting 5-10 vol. % of the powder. Pref. the catalyst is formed into pellets and heated in an inert atmos. at 475-570 degrees C. The Al powder is preoxidised by exposure to moist air at 200-250 degrees F until the wt. has increased by 5-10%. |
| priorityDate |
1977-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |