http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022017390-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_91ec26f558fc6a38426bafb3d9a10e0c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-346 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-722 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 |
| filingDate | 2019-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a7810884cfcdd032fea02ac29077933 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7628d8f01a02398274867658dec67594 |
| publicationDate | 2022-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2022017390-A1 |
| titleOfInvention | Method for the precipitation of arsenic and heavy metals from acidic process water |
| abstract | The invention relates to a method for the precipitation of arsenic and heavy metals from acidic, in particular sulphuric acid, process water ( 12 ), containing both arsenic and heavy metals, comprising a precipitation method phase (II) with a precipitation stage (D) in which arsenic and at least one primary heavy metal are precipitated together, wherein a sulphide precipitating agent ( 20 ) is added to the process water ( 12 ) such that arsenic is precipitated as arsenic sulphide and the at least one primary heavy metal is precipitated as metal sulphide. The precipitation method phase (II) comprises a conditioning stage (C) which is carried out before the precipitation stage (D) and in which a conditioning agent ( 16 ) is added to the acidic process water ( 12 ), which has an effect on the character, in particular the filtering properties, at least of the precipitated arsenic sulphide. |
| priorityDate | 2018-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.