http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104944448-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F5-14 |
| filingDate | 2015-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104944448-B |
| titleOfInvention | Preparation method for needle-shaped magnesium hydroxide |
| abstract | The invention provides a preparation method for needle-shaped magnesium hydroxide. The preparation method comprises the following steps: (1) calcining magnesite to obtain undercalcined magnesia; (2) mixing the undercalcined magnesia, water and a magnesium salt dispersing agent to obtain a suspension, stirring for reaction, then adding seed crystal, and leaving the mixture to stand; (3) reducing the temperature to the room temperature, and aging; (4) filtrating, washing and drying to obtain needle-shaped magnesium hydroxide. The preparation method has the advantages that the raw materials are easy to obtain, the process is simple, a hydro-thermal treatment procedure in a conventional hydration method is eliminated, the energy consumption is reduced, and the preparation method is suitable for industrialized production; needle-shaped magnesium hydroxide with different length-diameter ratios can be prepared by changing process conditions such as the type of the dispersing agent, concentration, hydration temperature, time, aging time and the like; the prepared magnesium hydroxide can be used as seed crystal to be recycled, so that the production cost is reduced. |
| priorityDate | 2015-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.