http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109368936-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-708 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A50-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2259-818 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-725 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23G7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-323 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23G7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-14 |
| filingDate | 2018-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109368936-B |
| titleOfInvention | Method for treating copper etching waste liquid |
| abstract | The invention relates to a method for treating copper etching waste liquid, which comprises the following steps: decomposing the copper etching waste liquid under the action of a solid filler loaded with a catalyst to obtain a first waste liquid and a first waste gas; adjusting the pH value of the first waste liquid to 8-10 to obtain a second waste liquid; distilling the second waste liquid to obtain distillate and concentrated liquid; performing biochemical treatment on the distillate to obtain a purified liquid and a second waste gas; burning the concentrated solution to obtain third waste gas; and treating the first waste gas, the second waste gas and the third waste gas by using waste gas treatment equipment. The treatment method of the copper etching waste liquid can effectively control the decomposition speed of the hydrogen peroxide in the copper etching waste liquid, improves the safety of the hydrogen peroxide decomposition, has no odor discharged in the treatment process, and does not pollute the environment. |
| priorityDate | 2018-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.