http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105253902-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-26 |
| filingDate | 2015-11-12^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-01-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-01-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105253902-B |
| titleOfInvention | Refining purifying and recycling method for scrap potassium carbonate containing conduction oil |
| abstract | The invention discloses a refining purifying and recycling method for scrap potassium carbonate containing conduction oil. The method comprises the following steps that ion exchange liquid containing low-concentration ammonium bicarbonate and potassium bicarbonate or filter residue cleaning water obtained in the follow-up steps is added in the scrap potassium carbonate containing the conduction oil, an adsorbing agent is added for adsorption oil removing, a decolorizing agent is added in an oil-removed potassium carbonate solution II for decolorizing, and an obtained refined potassium carbonate solution III is mixed with a coarse-level potassium bicarbonate solution obtained in the exchanging process of ion-exchange-method potassium carbonate production to obtain a mixed material solution; the mixed material solution is preheated and then sent into a desorption self-carbonization tower through a pump for low-temperature desorption self-carbonization, a material solution flowing out from the desorption self-carbonization tower is evaporated, concentrated, crystallized and separated to obtain potassium bicarbonate crystals and a potassium bicarbonate mother solution containing potassium carbonate; the potassium bicarbonate crystals are calcined to obtain the potassium carbonate. |
| priorityDate | 2015-11-12^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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