http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-PI0700021-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b5c879b5bebec13508dfad7003ae5de9 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-32 |
| filingDate | 2007-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bfea8fcc549b5fd9fd5e533d9e8c3416 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea4dafcd7ce6f3f2036b09303e3e1123 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42faf18df05765e56a0f7f34f3676e9f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88bf1e5619ce39100f50bc84983127c5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5870153b154c0c495a40fc2a5aa66ee |
| publicationDate | 2016-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-PI0700021-B1 |
| titleOfInvention | method of manufacturing sol-gel activated alumina adsorbent spheres suitable for the adsorption and capture of heavy metals present at low concentrations in large volumes of industrial liquid effluents |
| abstract | method of manufacturing sol-gel activated alumina absorbent spheres suitable for the adsorption and capture of heavy metals present at low concentrations in large volumes of industrial liquid effluents. The present invention relates to a method of manufacturing activated alumina adsorbent spheres, which is based on the well-known sol-gel process for immobilizing activated alumina microparticles (<386 m), preferably the <sym> phase. -a1 ~ 2 ~ o ~ 3 ~, in spherical shape and glue them with polyvinyl alcohol (pva) molecules and bohemite nanoparticles (<244> -a1 ~ 2 ~ o ~ 3 ~ .h ~ 2 ~ o) The nanoparticles are obtained with the aid of a sol-gel transformation reaction at room temperature in a gaseous medium containing nh ~ 3 ~ and in an aqueous medium containing nh ~ 4 ~ oh. Activated alumina spheres are obtained with high sphericity, mechanical strength greater than 2 kg / sphere, narrow diameter distribution, average diameter between 1 mm and 5 mm, with good chemical stability in acidic, basic and neutral media and with good capacity. absorb water without leading to destructive swelling. These beads are suitable for the alternative treatment of large volumes of industrial liquid tailings containing low concentrations of heavy metals, particularly cd, cu and zn, as they can be obtained industrially at low cost and with a removal efficiency of about 27%. %, 18%, 45% and 25% for cd + cu + zn, cd, cu and zn, respectively. |
| priorityDate | 2007-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.