http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102826520-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc5c06729e425f7adb1554ecb4cd4c3a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C281-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-24 |
| filingDate | 2012-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb441170cd9586f457f25f0abd1c91f6 |
| publicationDate | 2014-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102826520-B |
| titleOfInvention | Method for implementing co-production of ammonium sulfate from ADC foaming agent wastewater by extracting hydrazine hydrate |
| abstract | The invention relates to a method for coproducing ammonium sulfate from wastewater, in particular to a method for implementing co-production of ammonium sulfate from ADC foaming agent wastewater by extracting hydrazine hydrate. The method comprises the following steps that after being preheated step by step by condensate water with each effect, hydrazine hydrate coarse solution enters evaporator with each effect in parallel to be heated and evaporated; after settling and being pulped, saline-alkali pulp discharged by evaporator with each effect through a pipeline is subjected to centrifugal dewatering to obtain saline-alkali slags; centrifugal mother liquid is settled to obtain clear liquid returned to a hydrazine hydrate coarse solution storage tank; the saline-alkali slags are pulped by saturated liquid and are respectively made into salt pulp and alkali pulp by multiple gravity fractionations; and the salt pulp and alkali pulp are respectively subjected to centrifugal dewatering to obtain salt slags and alkali slags. According to the invention, the process is unique and the ADC foaming agent production wastewater only contains a mass of ammonium sulfate, so that the aim of treating the wastewater pollution of an ADC foaming agent is fulfilled. |
| priorityDate | 2012-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.