| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_205ef3efc4027b8a493914cc4c917f0a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-164 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-00 |
| filingDate |
1970-05-04^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-05-23^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d214609cd6912c999d4113c5b8f38c0b |
| publicationDate |
1972-05-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3664809-A |
| titleOfInvention |
Recovery of alumina from aluminosilicates |
| abstract |
ALUMINA, H2S AND PTASH ARE RECOVERED FROM ALUMINOSILICATES SUCH AS KOALIN CLAY BE REDUCING AND THEN CALCINING A MIXTURE OF CLAY AND POLYHALITE TO YIELD A SINTER OF CALCIUM AND/OR MAGENSIUM SILICATES AND POTASSIUM ALUMINATE AND H2S IN THE GAS PHASE. THE POTASSIUM ALUMINATE IS LEACHED OUT OF THE SINTER WITH POTASSIUM HYDROXIDE AND/OR POTASSIUM CARBONATE SOLUTION AND REACTED WITH CO2 TO YIELD AN ALUMINUM HYDROXIDE PRECIPITATE AND A POTASSIUM CARBONATE SOLUTION. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4159195-A |
| priorityDate |
1970-05-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |