http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103030205-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_22246ee59b38004b8635b014a1d0d517 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62 |
| filingDate | 2012-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_945252a3e91f352cfaa3771ce418e97a |
| publicationDate | 2014-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103030205-B |
| titleOfInvention | Method for preparing dangerous heavy metal removing agent in electroplating wastewater and application thereof |
| abstract | The invention discloses a method for preparing a dangerous heavy metal removing agent in electroplating wastewater and application thereof. The method comprises the following steps of: 1), fully reacting tetraethylenepentamine and carbon disulfide under an alkaline environment; and 2), adding epoxy chloropropane into a reactive product in the step 1) to fully react, and finally, blowing away redundant carbon disulfide by nitrogen, wherein the mass ratio of tetraethylenepentamine and carbon disulfide is 1 to (1.8-3.2), and the mass ratio of carbon disulfide and epoxy chloropropane is 1 to (7.5-10). The dangerous heavy metal removing agent is wide in application range, has a good deposition effect, and is completely deposited and dosage-type; heavy metal ions can be separated out without adding other auxiliary flocculating agents, and secondary pollution is avoided; the method is easy in using method, low in cost, simple in preparation process and easy to operate; hexavalent chromium can be directly reduced into trivalent chromium; the trivalent chromium is removed in a complexing mode; and a chromium breaking agent is not needed to be added. |
| priorityDate | 2012-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.