| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47becd0bad1e8c65826be1edac09d306 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S423-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-129
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F15-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-175 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F15-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-141 |
| filingDate |
1967-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1971-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d1425d5c92f27910c2e1a21a6ca28ce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba8b237a6fccfb7229da93b647acdc7e |
| publicationDate |
1971-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3554733-A |
| titleOfInvention |
Process obtaining sulfurous gases and magnetite or iron sponge from waste ferrous sulfate |
| abstract |
A PROCESS FOR OBTAINING CONCENTRATED SULFUROUS GASES AND MAGNETITE OR IRON SPONGE WITH HIGH IRON CONTENT, WHICH ARE VALUBLE PRODUCTS FOR THE IRON-METALLURGIC IN DUSTRY, FROM HEPTAHYDRATE FERROUS SULFATE. THE PROCESS IS BROADLY CHARACTERIZED BY THE FOLLOWING SEQUENCE; (A) DEHYDRATION OF THE HEPTAHYDRATE FERROUS SULFATE TO THE MONOHYDRATE FORM; (B) THERMAL DECOMPOSITION OF THE MONOHYDRATE FERROUS SULFATE IN A FLUIDIZED BED; (C) REDUCTION OF THE HOT HERMATITIC ASHES IN A FLUIDIZED BED OR IN A ROTARY FURNACE, TO MAGNETITE OR TO SPONGE IRON; (D) MAGNETIC CONCENTRATION OF THE PRODUCT OBTAINED IN (C) WITH CONSEQUENT ELIMNATION OF THE IMPURITIES UNDESIRABLE IN IRON METALLURGY AND OBTAINMENT OF A CONCENTRATE OF HIGH FE GRADE; (E) PREHEATING OF THE AIR NECESSARY FOR OPERATIONS (A), (B) AND (C) BY MEANS OF HEAT EXCHANGE WITH THE HOT SULFUROUS GASES PRODUCED IN (B); AND (F) UTILIZATION OF THE SENSIBLE AND CHEMICAL HEAT OF THE GASES LEAVING THE REDUCTION (C) FOR THE THERMAL DECOMPOSITON OF THE MONOHYDRATE FERROUS SULFATE AND/OR FOR THE DEHYDRATION OF THE HEPTAHYDRATE FERROUS SULFATE TO THE MONOHYDRATE FORM. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4261966-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0063410-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0063410-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2014285456-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4948477-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5810905-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0262564-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0262564-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4304759-A |
| priorityDate |
1966-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |