http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108726495-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-222 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-222 |
| filingDate | 2018-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108726495-B |
| titleOfInvention | Composite scale inhibitor for wet-process phosphoric acid production and preparation method and use method thereof |
| abstract | The invention relates to the technical field of scale prevention, in particular to a composite scale inhibitor for wet-process phosphoric acid production and a preparation method and a use method thereof. The composite scale inhibitor comprises: ammonium citrate, ethylenediamine tetraacetic acid, sodium alkyl benzene sulfonate, hexamethylenetetramine and/or citric acid, polyacrylamide, amino sulfuric acid and the like. The invention simulates the wet-process phosphoric acid production process in the Yidu mining area on the basis of analyzing the pipeline scaling reason and components in the Yidu wet-process phosphoric acid production of the emerging group, and adds different types of composite scale inhibitors before and after filtration respectively, so that the overall scale particles are reduced, the solubility is increased, the scale inhibition rate is up to 99.5 percent, and the composite scale inhibitor is applied to the wet-process phosphoric acid production, has the scale inhibition effect, reduces the scaling speed of the wet-process phosphoric acid equipment pipeline, prolongs the equipment pipeline operation period and the cleaning period, improves the operation rate of the phosphoric acid production equipment, and has obvious economic benefit. |
| priorityDate | 2018-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.