| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e014e02c211945b4448c361fe1c1ce42 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-3332
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-862 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-333 |
| filingDate |
1973-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d80d26667ac2f385ed4456a7335bb72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4710feaeab77351ef4cc06c7dceeec3e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5eac1f85022d677d643a59344ca7414
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1618729183f379603b5a8d0fc1ae0283
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b657315f3cc6b6b48346bb2c64faab2f |
| publicationDate |
1974-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-2303369-A1 |
| titleOfInvention |
PROCESS FOR MANUFACTURING DIOLEFIN HYDROCARBONS, SUCH AS DIVINYL OR ISOPRENE |
| abstract |
Dehydrogenation of olefins e.g. n-butylene or isoamylase is carried out under isothermal conditions at 560-600 degrees C in the presence of steam in molar ratio to hydrocarbons of 10-20:1 using a rising stream of hydrocarbons, catalyst and steam contg. 5-60 kg/m3 catalyst. The catalyst is sepd. from the prod. regenerated with air in a fluidised bed at 570-590 degrees C and recycled in amt. of 80-200 times the wt. of hydrocarbon. The amt. of catalyst in the reaction mixt. is pref. 15-20 kg/m3 and it consists of 35-50 wt.% Cr2O3, 20-30% Fe2O3, 20-25% ZnO and 0.5-2% SiO2. The process is esp. suitable for prodn. of divinyl or isoprene for use in mfr. of synthetic rubber and gives increased yield and selectivity. |
| priorityDate |
1973-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |