http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112591782-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-468 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-466 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-46 |
| filingDate | 2020-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112591782-B |
| titleOfInvention | Conversion and purification method of low-consumption dihydrate phosphogypsum |
| abstract | The invention discloses a conversion and purification method of low-consumption dihydrate phosphogypsum, which comprises the steps of adding water and a proper amount of decomposer into industrial byproduct dihydrate phosphogypsum, pulping through a wet grinding process, sieving, removing large particles and material balls, adding ammonium salt solution into the obtained slurry, fully and mechanically stirring, standing to take upper slurry, adding an organic solvent and a surfactant into the upper slurry to fully mix the upper slurry with the upper slurry, adding a mixed solution of saturated calcium hydroxide aqueous solution and ethanol, carrying out suction filtration on the obtained mixed solution, washing with ethanol, separating and drying to obtain the purified hemihydrate phosphogypsum. The invention can prepare the semi-hydrated phosphogypsum with higher purity by a physical and chemical combined method. The method has the characteristics of low energy consumption, low operation cost, environmental protection, high product purity and the like, solves the problem of comprehensive utilization of the phosphogypsum, is a new idea of resource utilization of the phosphogypsum, and opens up a new way for subsequent comprehensive utilization of the phosphogypsum. |
| priorityDate | 2020-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.