http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9731861-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d69ddbdc87de25e0c8a242bec1ee9d7 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B30-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 |
| filingDate | 1997-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7dde9d11f94978f80764e3a4e85e1737 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd0be965b812fa3768cb5c6701935b49 |
| publicationDate | 1997-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9731861-A1 |
| titleOfInvention | Process for stabilization of arsenic |
| abstract | The present invention is a method to remove arsenic from arsenic-containing materials (10) which is roasted (14) to form an offgas (18) and a roasted arsenic-containing material (22). An oxygen containing gas (26) is contacted with the arsenic-containing material. The offgas is subjected to solids collection (30) to form solids (34) and an offgas (38) for scrubbing (42). The solids (34) are combined with the roasted arsenic-containing material (22) before solubilization (46). The offgas (38) is subjected to scrubbing (42) with a scrubbing solution (50) to form a scrubbed offgas (58). The scrubbing solution is a portion of a pregnant leach solution (54). The scrubbed offgas is treated to remove sulfur dioxide (62). During solubilization arsenic oxides, ferric sulfates and ferric arsenates are dissolved to form a product slurry (62). The product slurry is subjected to liquid/solid separation (66) to form a leach residue (70) and a pregnant leach solution (54). A portion of a treated solution (74) is combined with water (118) to form a wash solution (78). The wash solution is used during liquid/solid phase separation to wash the leach residue to remove arsenic. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2128094-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2128094-A4 |
| priorityDate | 1996-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.