http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109825717-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B26-22 |
| filingDate | 2019-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109825717-B |
| titleOfInvention | Method for recovering magnesium, iron and aluminum from vanadium-containing solution step by step |
| abstract | The invention relates to a method for recovering magnesium, iron and aluminum from vanadium-containing solution step by step. The technical scheme is as follows: and (3) adjusting the pH value of the vanadium-containing solution by using alkali, carrying out solid-liquid separation, and washing to obtain a magnesium-removed solution and magnesium oxalate. Adding sodium salt into the liquid after magnesium removal, heating and stirring, crystallizing at 0-10 ℃ in a dark condition, and carrying out solid-liquid separation to obtain liquid after iron removal and a crystal I; and adding water with the temperature of 90-100 ℃ into the crystal I, stirring until the water is completely dissolved, cooling, recrystallizing, carrying out solid-liquid separation, and washing to obtain the sodium iron oxalate. Adding sylvite into the liquid after iron removal, stirring at 90-95 ℃, crystallizing at 0-10 ℃, and carrying out solid-liquid separation to obtain a liquid after aluminum removal and a crystal II; and adding water with the temperature of 90-100 ℃ into the crystal II, stirring until the water is completely dissolved, cooling, recrystallizing, and carrying out solid-liquid separation to obtain the aluminum potassium oxalate. The method has the characteristics of simple process, good vanadium and impurity ion separation effect and high comprehensive utilization rate of resources. |
| priorityDate | 2019-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.