| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fdc7b15ab3b4c077f336d1f18c660fb0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S423-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D2203-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D2101-43 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-33 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D101-43 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D3-33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12S5-00 |
| filingDate |
2000-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99c86fb5b9c695457ee96c3c40ae2bd8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9dce9ca2fe8b67adf7c35ac46d720223 |
| publicationDate |
2002-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-0011819-A |
| titleOfInvention |
Process for removing and immobilizing arsenic from arsenic-containing waste |
| abstract |
"PROCESS FOR THE REMOVAL AND IMMOBILIZATION OF ARSENIUM FROM A WASTE CONTAINING ARSENIUM". The invention provides a process for removing and immobilizing an arsenic-containing residue. It comprises the oxidation of arsenic to pentavalent arsenic in an aqueous medium, the contact of pentavalent arsenic with trivalent iron to form an insoluble iron-arsenic compound and the separation of the precipitated iron-arsenic compound from the aqueous medium. The oxidation of arsenic is carried out using oxidizing bacteria at a pH between 0.5 and 4 and at a temperature between 20 and 90 <198> C in the presence of a mineral catalyst such as pyrite. |
| priorityDate |
1999-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |