http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108862348-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-0706 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-74 |
| filingDate | 2018-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108862348-B |
| titleOfInvention | A kind of recycling method of electrode foil corrosion waste sulfuric acid |
| abstract | The invention belongs to the technical field of resource recovery, and in particular relates to a method for recycling waste sulfuric acid from corrosion of electrode foils. The method realizes the recovery of sulfuric acid, hydrochloric acid and aluminum sulfate in the corrosion waste acid at the same time, realizes zero discharge in the production process, has no secondary pollution, and has high environmental protection performance; adding sulfuric acid before cooling reduces the aluminum sulfate in the waste acid solution. It overcomes the problem that the waste acid after cooling will be completely solid and difficult to separate due to the high concentration of aluminum sulfate in the waste acid, which makes the separation of sulfuric acid and aluminum sulfate easier, thereby improving the recovery efficiency of sulfuric acid and aluminum sulfate. ; The use of two-effect three-stage evaporation realizes the full utilization of the steam waste heat generated in the evaporation process, and the equipment has a long service life and low energy consumption. |
| priorityDate | 2018-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.