Encapsulated lithium particles and methods of making and use thereof
US-2018315999-A1 · Nov 1, 2018 · US
Method for producing particles
US9868645B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9868645-B2 |
| Application number | US-201615347441-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2016 |
| Priority date | Nov 30, 2015 |
| Publication date | Jan 16, 2018 |
| Grant date | Jan 16, 2018 |
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Abstract
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The object of the disclosure is to provide a method for efficiently producing fine particles with low crystal growth of the raw material components, in particular fine particles with a plurality of raw material components in a highly complexed state and having low crystal growth, without blockage of the nozzle. The method of the disclosure for producing particles includes injecting a good solvent solution that includes a good solvent and one or more raw material components dissolved in the good solvent, with a nozzle into a precipitating poor solvent that has been heated to a temperature higher than the boiling point of the good solvent, to evaporate the good solvent solution and precipitate a plurality of particles, and running a cleansing poor solvent through the nozzle before starting and after completing injection of the good solvent solution into the precipitating poor solvent.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing particles, the method comprising: injecting a good solvent solution that comprises a good solvent and one or more raw material components dissolved in the good solvent, through a nozzle into a precipitating poor solvent that has been heated to a temperature higher than the boiling point of the good solvent, to evaporate the good solvent and precipitate a plurality of particles, and running a cleansing poor solvent through the nozzle before starting and after completing injection of the good solvent solution into the precipitating poor solvent. 2. A method for producing particles according to claim 1 , further comprising running the good solvent solution and the cleansing poor solvent through the nozzle in an alternating manner. 3. A method for producing particles according to claim 1 , further comprising mixing the good solvent solution and the cleansing poor solvent and running them through the nozzle. 4. A method for producing particles according to claim 1 , wherein the cleansing poor solvent has a boiling point that is at or above the temperature of the precipitating poor solvent that has been heated. 5. A method for producing particles according to claim 4 , wherein the cleansing poor solvent and the precipitating poor solvent are the same. 6. A method for producing particles according to claim 1 , wherein the temperature of the precipitating poor solvent that has been heated is at least 165° C. higher than the boiling point of the good solvent. 7. A method for producing particles according to claim 1 , wherein a plurality of different raw material components are dissolved in the good solvent. 8. A method for producing particles according to claim 7 , wherein the plurality of different raw material components are lithium sulfide and lithium halides. 9. A method for producing particles according to claim 8 , wherein the lithium halides are lithium iodide and lithium bromide. 10. A method for producing particles according to claim 1 , wherein the good solvent solution is in the state of a slurry further comprising at least one type of raw material component in powdered form, dispersed in the good solvent. 11. A method for producing particles according to claim 1 , wherein the concentration of the one or more raw material components in the good solvent solution is 10 g/l or greater. 12. A method for producing particles according to claim 1 , wherein the flow rate of the good solvent during injection of the good solvent solution into the precipitating poor solvent is between 5 ml/min and 10 ml/min, inclusive.
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Frequently asked questions
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- What does patent US9868645B2 cover?
- The object of the disclosure is to provide a method for efficiently producing fine particles with low crystal growth of the raw material components, in particular fine particles with a plurality of raw material components in a highly complexed state and having low crystal growth, without blockage of the nozzle. The method of the disclosure for producing particles includes injecting a good solve…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01D15/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 16 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).