http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-3077551-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D3-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03B9-02 |
| filingDate | 2020-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7baced05e60e31bbaf8f77c287046667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55de8308637e89c8004a028dfee80c91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a08459074caccfdc91dedc873d4d4fc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aed33eef306c77a5c913c1b464e9b3b3 |
| publicationDate | 2021-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-3077551-A1 |
| titleOfInvention | Enhanced dewatering of mining tailings employing aluminosilicate pre-treatment |
| abstract | The invention relates to a process for separating solids from an aqueous slurry con-taining particulate material, which particulate material comprises sand particles and fines particles and contains clay particles, which aqueous suspension has a solids content of from 30 to 70% by weight and a sand to fines ratio of from greater than 1:1 to 3:1, which process comprises applying a treatment system to the aqueous slurry to cause flocculation of the particulate material, and subsequently separating the so formed flocculated particulate material as solids from the slurry, in which the treatment system comprises (a) at least one aluminosilicate nanoparticulate material, in which the molar ratio of aluminium to silicon is from 0.7:1 to 3:1; (b) at least one polymeric flocculant, which has an intrinsic viscosity of at least 5 dl/g (measured at 25 C in 1 M NaCI), and (c) optionally, at least one cationic coagulant. In addition, the present invention also encompasses a composition formed from an aqueous slurry containing particulate material, which particulate material comprises sand particles and fines particles and contains clay particles, which aqueous suspen-sion has a solids content of from 30 to 70% by weight and a sand to fines ratio of from greater than 1:1 to 3:1, which composition comprises flocculated particulate sol-ids and a treatment system in which the treatment system comprises: (a) at least one aluminosilicate nanoparticulate material, in which the molar ratio of aluminium to sili-con is from 0.7:1 to 3:1; (b) at least one polymeric flocculant, which has an intrinsic viscosity of at least 5 dl/g (measured at 25 C in 1 M NaCI), and (c) optionally, at least one cationic coagulant. Further, the invention relates to the aforementioned treatment system and its use. The invention provides effective dewatering of aqueous slurries containing particulate material having sand and fines components and containing clay particles employing a new treatment system to yield a dewatered particulate material. |
| priorityDate | 2020-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 146.