| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7990a7212df139b27368aae36e259d3b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eab6b89e495c6e5218bba8dd07a9d578
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bd97e9555c190e67ee9818e142f9fe56 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-26 |
| filingDate |
1980-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b0404773c2c16d75721f007ba96b870 |
| publicationDate |
1981-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0024131-A1 |
| titleOfInvention |
A method of obtaining alumina from clay and other alumino-silicates and alumina obtained by this method |
| abstract |
A method of obtaining alumina from clay or other alumino-silicate comprises the step of reacting the clay or other aluminium silicate with a salt of an alkali metal or ammonia, the reaction being carried out in the dry state at a temperature between 300-750°C and for a time between 45 and 120 minutes to produce a double salt of aluminium-alkali or aluminium-ammonium. The double salt is then separated from the reaction product by dissolution, and thereafter the aluminium is precipitated as aluminium hydroxide, which is calcined to give crystalline alumina. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104556168-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104556168-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100572279-C |
| priorityDate |
1979-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |