http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019135036-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 |
| filingDate | 2018-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c70205f98c9255c4d965ca8f2d0edbfb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac580255cda0c978a031772e211650ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a575be075802effac5e8aa1193a15774 |
| publicationDate | 2019-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2019135036-A |
| titleOfInvention | Treatment method of waste acid generated in copper smelting |
| abstract | PROBLEM TO BE SOLVED: To provide a waste acid treatment method capable of reducing the amount of water contained in a sulfided starch and suppressing the cost required for drying. SOLUTION: A method for treating a waste acid containing heavy metals, sulfuric acid, and arsenic discharged by a water washing treatment of a copper smelting exhaust gas, the first sulfurized starch produced by adding a sulfiding agent to the waste acid. The first sulfurization step 4 to be recovered and the gypsum generated by adding a neutralizing agent to the clarified liquid obtained by removing the first sulfurized starch are removed, and then the sulfurizing agent is added to the final gypsum liquid obtained. And a second sulfurization step 6 for recovering the second sulfurized starch produced, and the water content of the second sulfurized starch is adjusted by the oxidation-reduction potential of the treatment liquid in the first sulfurization step 4. [Selection] Figure 1 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113562830-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115340228-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115558795-A |
| priorityDate | 2018-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.